Welcome to LookChem.com Sign In|Join Free

CAS

  • or

56-23-5

Post Buying Request

56-23-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

56-23-5 Usage

Chemical Description

Different sources of media describe the Chemical Description of 56-23-5 differently. You can refer to the following data:
1. Carbon tetrachloride is a colorless liquid that was once widely used as a solvent, but is now known to be toxic and carcinogenic.
2. Carbon tetrachloride is used as a solvent.
3. Carbon tetrachloride is used as a solvent in the chlorination of p-iodoanisole.
4. Carbon tetrachloride is a colorless liquid used as a solvent and in fire extinguishers.
5. Carbon tetrachloride is a nonflammable liquid used as a solvent and in fire extinguishers.

Organic solvents

Carbon tetrachloride, also known as tetrachloromethane, has its molecule formula being CCl4. It appears as colorless liquid with the melting point of-23 ° C, boiling point of 76.8 ° C and the relative density of 1.5867. It can dissolve grease, paint, resin, rubber and many other substances, being commonly used organic solvent and extractant. It can also be used as dry cleaning agent. However, long-term exposure to carbon tetrachloride will irritate the skin, inhibit the central nervous system and cause damage to the liver and kidney. Therefore, the operator should pay special attention. Carbon tetrachloride is volatile with its vapor being heavier than air, being non-conductive and inflammable. When the carbon tetrachloride is heat to be evaporated to become heavy steam, the gas will cover the combustion products, so that the firing product is isolated from the air and the fire is extinguished. It is especially suitable for extinguishing oil fire and fire near the power. However, carbon tetrachloride, at high temperature (500 ℃ above), can react with water to produce highly toxic phosgene, so we should pay attention to ventilation for extinguishing fire. carbon tetrachloride lewis structure

Chemical Properties

Different sources of media describe the Chemical Properties of 56-23-5 differently. You can refer to the following data:
1. Carbon tetrachloride is a clear, colorless liquid with a distinctive, sweet ether-like odor. It is toxic and forms phosgene, hydrogen chloride, and chlorine when heated. It has a water solubility of 1160 mg/l and is miscible with various organic solvents. It is mildly reactive with lead and copper and can be reduced to chloroform in the presence of zinc and an acid.
2. Carbon tetrachloride readily dissolves stannic chloride, SnCl4, but not ferric chloride, FeCl3. Carbon tetrachloride forms a large number of binary and several ternary azeotropic mixtures; a partial list of the former is shown in Table 2. Many polymer films, eg, polyethylene and polyacrylonitrile, are permeable to carbon tetrachloride vapor. Carbon tetrachloride vapor affects the explosion limits of several gaseous mixtures, eg, air-hydrogen and airmethane. The extinctive effect that carbon tetrachloride has on a flame, mainly because of its cooling action, is derived from its high thermal capacity. As chlorination proceeds from methyl chloride to carbon tetrachloride, the length of the C?Cl bond is decreased from 0.1786 nm in the former to 0.1755 nm in the latter. At ca 400 °C (752 °F), thermal decomposition of carbon tetrachloride occurs very slowly, whereas at 900–1,300 °C (1,652–2,372 °F) dissociation is extensive, forming perchloroethylene and hexachloroethane and liberating some chlorine. Subjecting the vapor to an electric arc also forms perchloroethylene and hexachloroethane, as well as hexachlorobenzene, elementary carbon, and chlorine.
3. Carbon tetrachloride, CC14, also known as tetrachloromethane, perchloro methane, and benzinoform, is a colorless liquid with a boiling point of 77 °C (170 OF). It is used as a solvent for lacquers, resin, and rubbers,and as a dry cleaning agent.

Uses

Different sources of media describe the Uses of 56-23-5 differently. You can refer to the following data:
1. Most of the carbon tetrachloride produced is used in the production of CFCs, which were primarily used as refrigerants, propellants, foam-blowing agents and solvents and in the production of other chlorinated hydrocarbons. Carbon tetrachloride has been used as a grain fumigant, pesticide, solvent for oils and fats, metal degreaser, fire extinguisher and flame retardant, and in the production of paint, ink, plastics, semi-conductors and petrol additives. It was previously also widely used as a cleaning agent. All these uses have tended to be phased-out as production has dropped (ECDIN, 1992; ATSDR, 1994).
2. Decades ago, this compound was mixed with ether and sold as Carbona, a dry-cleaning fluid for clothes. It is no longer permissible to sell or buy CCL4 for household use. It is classed as a carcinogen by the U.S. government and is toxic if ingested, inhaled, or absorbed by the skin. Carbon tetrachloride is used to manufacture CFHCs, to fumigate grains to kill insects, and in the production of semiconductors.
3. In the manufacture of chlorofluorocarbons, which in turn are primarily used as refrigerants; formerly used widely as a solvent, also as a grain fumigant and in fire extinguishers. Because of toxicity consumer uses have been discontinued and only industrial use remains.
4. Carbon tetrachloride is used as a solvent, infire extinguishers, in dry cleaning, and in themanufacture of fluorocarbon propellents.As solvent for oils, fats, lacquers, varnishes, rubber waxes, resins; starting material in manufacture of organic Compounds. Pharmaceutic aid (solvent).

Chemical reaction

Carbon tetrachloride molecule exhibits tetrahedral structure, belonging to non-polar molecule. It chemical reactivity was inert, but being more active than chloroform. At 250 ℃ with the presence of water, it can react with some metals to produce carbon dioxide; Upon anhydrous condition, the reaction between carbon tetrachloride and metal is very slow.CCl4 + 2H2O→CO2 + 4HClCarbon tetrachloride is decomposed by water in the presence of metals such as aluminum and iron (catalyzed). If it is superheated steam, even without the presence of metal catalyst, carbon tetrachloride can also be decomposed to produce phosgene.CCl4 + H2O →COCl2 + 2HClIn the case of heating, carbon tetrachloride can have reaction with halogen salt, generating other kinds of tetrahalide. For example, its reaction with silver fluoride can generate carbon tetrafluoride; its reaction with aluminum bromide and calcium iodide can generate carbon tetrabromide and tetra-iodide.In the presence of trace amount of hydrogen chloride, the product can react with silver perchlorate, generating explosive compounds Cl3CClO4:CCl4 + AgClO4 → Cl3CClO4 + AgClIn the presence of antimony pentachloride catalyst, this product can react with hydrogen fluoride to generate fluoride methyl chloride, such as monofluorotrichloromethane, difluorodichloromethane, namely, Freon refrigerant.CCl4 + HF→CCl3F + HClCCl4 + 2HF→CCl2F2 + HClCarbon tetrachloride can react with sulfur at high temperatures (above 200 ° C) to produce carbon disulfide.CCl4 + 6S → CS2 + 2S2Cl2Under the catalysis of anhydrous aluminum chloride, carbon tetrachloride can react with benzene, generating triphenyl methane.Under the catalysis of iron or iron salt, heating to 330 ℃ can promote the oxidation of carbon tetrachloride decomposition, generating phosgene.2CCl4 + O2 →2COCl2 + 2Cl2

Preparation

Carbon tetrachloride, CCl4 (i.e., tetrachloromethane) is prepared by the action of chlorine on carbon disulphide in the presence of iodine, which acts as a catalyst. CS2 + Cl2= CCl4 + S2Cl2 Carbon tetrachloride may also be prepared by the free radical substitution of the hydrogen atoms of methane by chlorine. CH4 + 4Cl2 = CCl4 + 4HCl The bonding in carbon tetrachloride is covalent, as in methane.

Description

Carbon tetrachloride is a manufactured chemical and does not occur naturally in the environment. It is produced by chlorination of a variety of low molecular weight hydrocarbons such as carbon disulfide, methane, ethane, propane, or ethylene dichloride and also by thermal chlorination of methyl chloride. Carbon tetrachloride is a precursor for chlorofluorocarbon (CFC) gases that have been used as aerosol propellant. A decrease in this use is occurring due to the agreement reached in the Montreal Protocol for the reduction of environmental concentrations of ozone-depleting chemicals, including carbon tetrachloride.

Physical properties

Carbon tetrachloride is a volatile colourless clear heavy liquid with a characteristic sweet non-irritant odour. The odour threshold in water is 0.52 mg/litre and in air is > 10 ppm. Carbon tetrachloride is miscible with most aliphatic solvents and it is a solvent for benzyl resins, bitumen, chlorinated rubber, rubber-based gums, oils and fats.The solubility in water is low. Carbon tetrachloride is non-flammable and is stable in the presence of air and light. Decomposition may produce phosgene, carbon dioxide and hydrochloric acid.

History

In the 1890s, commercial manufacturing processes were being investigated by the United Alkali Co. in England. At the same time it was also produced in Germany, exported to the United States, and retailed as a spotting agent under the trade name Carbona. Large-scale production of carbon tetrachloride in the United States commenced in the early 1900s. By 1914, annual production fell just short of 4500 metric tons and was used primarily for dry cleaning and for charging fire extinguishers. During World War I, U.S. production of carbon tetrachloride expanded greatly; its use was extended to grain fumigation and the rubber industry. In 1934 it was supplanted as the predominant dry-cleaning agent in the United States by perchloroethylene, which is much less toxic and more stable. During the years immediately preceding World War II, trichloroethylene began to displace carbon tetrachloride from its then extensive market in the United States as a metal degreasing solvent. Carbon tetrachloride is more difficult to recover from degreasing operations, more readily hydrolyzed, and more toxic than trichloroethylene C2HCl3. The demands of World War II stimulated production and marked the beginning of its use as the starting material for chlorofluoromethanes, by far the most important application for carbon tetrachloride.

Definition

ChEBI: A chlorocarbon that is methane in which all the hydrogens have been replaced by chloro groups.

Production Methods

Carbon tetrachloride is made by the reaction of carbon disulfide and chlorine in the presence of a catalyst, such as iron or antimony pentachloride: CS2 + 3Cl2 → CCl4 + S2Cl2 Sulfur chloride is removed by treatment with caustic soda solution. The product is purified by distillation. Alternatively, CCl4 may be prepared by heating a mixture of chlorine and methane at 250 to 400°C. CH4 + 4Cl2 → CCl4 + 4HCl

General Description

Carbon tetrachloride appears as a clear colorless liquid with a characteristic odor. Denser than water (13.2 lb / gal) and insoluble in water. Noncombustible. May cause illness by inhalation, skin absorption and/or ingestion. Used as a solvent, in the manufacture of other chemicals, as an agricultural fumigant, and for many other uses.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Carbon tetrachloride is a commonly used liquid in fire extinguishers to combat small fires. Carbon tetrachloride has no flash point, Carbon tetrachloride is not flammable. However, when heated to decomposition, Carbon tetrachloride will emit fumes of extremely toxic phosgene and of hydrogen chloride. Forms explosive mixtures with chlorine trifluoride, calcium hypochlorite, decaborane, dinitrogen tetraoxide, fluorine. Forms impact-sensitive explosive mixtures with particles of many metals: lithium, sodium, potassium, beryllium, zinc, aluminum, barium. Vigorous exothermic reaction with allyl alcohol, boron trifluoride, diborane, disilane, aluminum chloride, dibenzoyl peroxide, potassium tert-butoxide, liquid oxygen, zirconium. [Bretherick, 5th ed., 1995, p. 666]. Potentially dangerous reaction with dimethylformamide or dimethylacetamide in presence of iron [Cardillo, P. et al., Ann. Chim. (Rome), 1984, 74, p. 129].

Hazard

Carbon tetrachloride is a poison and also a carcinogen. The acute toxicity of this compound in humans is of low order. However, the ingestion of the liquid can be fatal, death resulting from acute liver or kidney necrosis. (Patnaik, P. 1999. A Comprehensive Guide to the Hazardous Properties of Chemical Substances, 2nd ed. New York: John Wiley & Sons.) The acute poisoning effects are headache, dizziness, fatigue, stupor, nausea, vomiting, diarrhea, and liver damage. Chronic exposure can damage both liver and kidney. Carbon tetrachloride also is a suspected human carcinogen. It causes liver and thyroid cancers in experimental animals.

Health Hazard

Carbon tetrachloride exhibits low acute tox icity by all routes of exposure. The acute poisoning effects include dizziness, fatigue,headache, nervousness, stupor, nausea, vom iting, diarrhea, renal damage, and liverinjury. The dosages that produce toxic act ions in animals vary with the species. Theoral LD50 values in rats, rabbits, and mice are2800, 5760, and 8263 mg/kg, respectively(NIOSH 1986).Ingestion of carbon tetrachloride can befatal to humans, death resulting from acuteliver or kidney necrosis. Chronic exposuremay cause liver and kidney damage. Expo sure to a 10-ppm concentration for severalweeks produced accumulation of fat in the liv ers of experimental animals (ACGIH 1986).Substances such as ethanol and barbituratescause potentiation of toxicity of carbon tetra chloride. Skin contact can cause dermatitis.Azri and coworkers (1990) have investi gated carbon tetrachloride–induced hepato toxicity in rat liver slices. Liver slices frommale rats were incubated and exposed tocarbon tetrachloride vapors, and the degreeof injury to cellular tissue was determined.Covalent binding of CCl4 radical to proteinsand lipid molecules in a slice caused the cel lular injury. The toxicity depended on thevapor concentration and the time of expo sure. Azri and coworkers reported furtherthat rats pretreated with phenobarbital weremore rapidly intoxicated even at a lower con centration of carbon tetrachloride vapors. Onthe other hand, pretreatment with allyliso propylacetamide inhibited the toxicity of car bon tetrachloride.Carbon tetrachloride is a suspected humancarcinogen. Oral and subcutaneous adminis tration of this compound in rats caused liverand thyroid cancers in the animals.

Flammability and Explosibility

Carbon tetrachloride is noncombustible. Exposure to fire or high temperatures may lead to formation of phosgene, a highly toxic gas.

Industrial uses

Carbon tetrachloride is a clear, heavy liquid with a strong, aromatic odor. Its formula is CC14. It is produced in large quantities for use in the manufacturing of refrigerants and propellants for aerosol cans. It is also used as a feedstock in the synthesis of chlorofluorocarbons and other chemicals, in petroleum refining, pharmaceutical manufacturing, and general solvent use. Until the mid- 1960s, it was also widely used as a cleaning fluid, both in industry, where it served as a degreasing agent, and in the home, where it was used as a spot remover and in fire extinguishers.Carbon tetrachloride is a highly volatile liquid with a strong etherial odor similar to chloroform. It mixes sparingly with water and is not flammable. When heated to decomposition, it emits highly toxic fumes of phosgene and hydrogen chloride. There is strong evidence that the toxicity of carbon tetrachloride is dramatically increased by its interaction with alcohols, ketones, and a range of other chemicals. Carbon tetrachloride is known to deplete the ozone layer, where it is responsible for 17% of the ozone-destroying chlorine now in the stratosphere due to human activities. Carbon tetrachloride has a half-life of between 30 and 100 years.Its DOT Label is Poison, and its UN number is 1846.

Safety Profile

Also forms explosive mixtures with chlorine trifluoride, calcium hypochlorite (heatsensitive), calcium dtsllicide (frictionand pressuresensitive), triethyldialuminum trichloride (heatsensitive), decaborane(l4) (impact-sensitive), dinitrogen tetraoxide. Violent or explosive reaction on contact with fluorine. Forms explosive mixtures with ethylene between 25' and 105' and between 30 and 80 bar. Potentially explosive reaction on contact with boranes. 9:l mixtures of methanol and cCl4 react exothermically with aluminum, magnesium, or zinc. Potentially dangerous reaction with dimethyl formamide, 1,2,3,4,5,6 hexachlorocyclohexane, or dtmethylacetamide when iron is present as a catalyst. CCh has caused explosions when used as a fire extingusher on wax and uranium fires. Incompatible with aluminum trichloride, dtbenzoyl peroxide, potassiumtert-butoxide. Vigorous exothermic reaction with allyl alcohol, Al(C2H5)3, (benzoyl peroxide + C2H4), BrF3, diborane, dsilane, liquid O2, Pu, (AgClO4 + HCl), potassiumtert-butoxide, tetraethylenepentamine, tetrasilane, trisilane, Zr. When heated to decomposition it emits toxic fumes of Cl and phosgene. It has been banned from household use by the FDA.

Potential Exposure

Carbon tetrachloride, and organochlorine, is used as a solvent for oils, fats, lacquers, varnishes, rubber, waxes, and resins. Fluorocarbons are chemically synthesized from it. It is also used as an azeotropic drying agent for spark plugs; a dry-cleaning agent; a fire extinguishing agent; a fumigant, and an anthelmintic agent. The use of this solvent is widespread, and substitution of less toxic solvents when technically possible is recommended.

Carcinogenicity

Carbon tetrachloride is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.

Source

Carbon tetrachloride is used in fumigant mixtures such as 1,2-dichloroethane (Granosan) because it reduces the fire hazard (Worthing and Hance, 1991).

Environmental Fate

Biological. Carbon tetrachloride was degraded by denitrifying bacteria forming chloroform (Smith and Dragun, 1984). An anaerobic species of Clostridium biodegraded carbon tetrachloride by reductive dechlorination yielding trichloromethane, dichloromethane and unidentified products (G?lli and McCarty, 1989). Chloroform also formed by microbial degradation of carbon tetrachloride using denitrifying bacteria (Smith and Dragun, 1984). Carbon tetrachloride (5 and 10 mg/L) showed significant degradation with rapid adaptation in a static-culture flask-screening test (settled domestic wastewater inoculum) conducted at 25°C. Complete degradation was observed after 14 days of incubation (Tabak et al., 1981). Chemical/Physical. Under laboratory conditions, carbon tetrachloride partially hydrolyzed to chloroform and carbon dioxide (Smith and Dragun, 1984). Complete hydrolysis yielded carbon dioxide and hydrochloric acid (Kollig, 1993). Carbon tetrachloride slowly reacts with hydrogen sulfide in aqueous solution yielding carbon dioxide via the intermediate carbon disulfide. However, in the presence of two micaceous minerals (biotite and vermiculite) and amorphous silica, the rate of transformation increased. At 25°C and a hydrogen sulfide concentration of 1 mM, the half-lives for carbon tetrachloride were calculated to be 2,600, 160 and 50 days for the silica, vermiculite and biotite studies, respectively. In all three studies, the major transformation pathway is the formation of carbon disulfide which undergoes hydrolysis yielding carbon dioxide (81–86% yield) and hydrogen sulfide ions. Minor intermediates detected include chloroform (5–15% yield),carbon monoxide (1–2% yield) and a nonvolatile compound tentatively identified as formic acid (3–6% yield) (Kriegman-King and Reinhard, 1992). Anticipated products from the reaction of carbon tetrachloride with ozone or hydroxyl radicals in the atmosphere are phosgene and chloride radicals (Cupitt, 1980). Phosgene is hydrolyzed readily to hydrochloric acid and carbon dioxide (Morrison and Boyd, 1971). Matheson and Tratnyek (1994) studied the reaction of fine-grained iron metal in an anaerobic aqueous solution (15°C) containing carbon tetrachloride (151 μM). Initially, carbon tetrachloride underwent rapid dehydrochlorination forming chloroform, which further degraded to methylene chloride and chloride ions. The rate of reaction decreased with each dehydrochlorination step. However, after 1 hour of mixing, the concentration of carbon tetrachloride decreased from 151 to approximately 15 μM. No additional products were identified although the authors concluded that environmental circumstances may exist where degradation of methylene chloride may occur. They also reported that reductive dehalogenation of carbon tetrachloride and other chlorinated hydrocarbons used in this study appears to take place in conjunction with the oxidative dissolution or corrosion of the iron metal through a diffusion-limited surface reaction. The evaporation half-life of carbon tetrachloride (1 mg/L) from water at 25°C using a shallow-pitch propeller stirrer at 200 rpm at an average depth of 6.5 cm is 29 minutes (Dilling, 1977).

storage

Carbon tetrachloride should be handled in the laboratory using the "basic prudent practices".

Shipping

UN1846 Carbon tetrachloride, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Purification Methods

For many purposes, careful fractional distillation gives adequate purification. Carbon disulfide, if present, can be removed by shaking vigorously for several hours with saturated KOH, separating, and washing with water: this treatment is repeated. The CCl4 is shaken with conc H2SO4 until there is no further coloration, then washed with water, dried with CaCl2 or MgSO4 and distilled (from P2O5 if desired). It must not be dried with sodium. An initial refluxing with mercury for 2hours removes sulfides. Other purification steps include passage of dry CCl4 through activated alumina, and distillation from KMnO4. Carbonyl containing impurities can be removed by percolation through a Celite column impregnated with 2,4-dinitrophenylhydrazine (DNPH), H3PO4 and water. (Prepared by dissolving 0.5g DNPH in 6mL of 85% H3PO4 by grinding together, then mixing with 4mL of distilled water and 10g Celite.) [Schwartz & Parks Anal Chem 33 1396 1961]. Photochlorination of CCl4 has also been used: CCl4 to which a small amount of chlorine has been added is illuminated in a glass bottle (e.g. for 24hours with a 200W tungsten lamp near it), and, after washing out the excess chlorine with 0.02M Na2SO3, the CCl4 is washed with distilled water and distilled from P2O5. It can be dried by passing through 4A molecular sieves and distilled. Another purification procedure is to wash CCl4 with aqueous NaOH, then repeatedly with water and N2 gas is bubbled through the liquid for several hours. After drying over CaCl2 it is percolated through silica gel and distilled under dry N2 before use [Klassen & Ross J Phys Chem 91 3664 1987]. [Beilstein 1 IV 56.]

Toxicity evaluation

Most of the carbon tetrachloride produced is released to the atmosphere. In the atmosphere, photodegradation by shorter wavelength ultraviolet radiation appears to be the primary removal process although it is very stable in the environment remaining in the air for several years before breaking down, so a significant global transport is expected. The estimated half-life of atmospheric carbon tetrachloride is 30–100 years. Small amounts can be released to the water but due to the relatively high rate of volatilization from water, carbon tetrachloride tends to evaporate in a short time. It is stable to hydrolysis in water. Most of the amount released to soil evaporates rapidly due to its high vapor pressure but a small proportion could remain associated to the soil organic matter. Carbon tetrachloride is mobile in most soils depending on the organic carbon content and can reach groundwater where it remains for long periods before it is broken down to other chemicals.

Incompatibilities

Oxidative decomposition on contact with hot surfaces, flames, or welding arcs. Carbon tetrachloride decomposes forming toxic phosgene fumes and hydrogen chloride. Decomposes violently (producing heat) on contact with chemically active metals, such as aluminum, barium, magnesium, potassium, sodium, fluorine gas, allyl alcohol, and other substances, causing fire and explosion hazard. Attacks copper, lead, and zinc. Attacks some coatings, plastics, and rubber. Becomes corrosive when in contact with water; corrosive to metals in the presence of moisture.

Waste Disposal

Incineration, preferably after mixing with another combustible fuel; care must be exercised to assure complete combustion to prevent the formation of phosgene; an acid scrubber is necessary to remove the halo acids produced. Recover and purify by distillation where possible.

Check Digit Verification of cas no

The CAS Registry Mumber 56-23-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56-23:
(4*5)+(3*6)+(2*2)+(1*3)=45
45 % 10 = 5
So 56-23-5 is a valid CAS Registry Number.
InChI:InChI=1/CCl4/c2-1(3,4)5

56-23-5 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • USP

  • (1601168)  Residual Solvent Class 1 - Carbon Tetrachloride  United States Pharmacopeia (USP) Reference Standard

  • 56-23-5

  • 1601168-3X1.2ML

  • 4,588.74CNY

  • Detail

56-23-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name tetrachloromethane

1.2 Other means of identification

Product number -
Other names tert-butyl N-acetate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Volatile organic compounds
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:56-23-5 SDS

56-23-5Synthetic route

bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

A

tetrachloromethane
56-23-5

tetrachloromethane

B

phosgene
75-44-5

phosgene

C

carbon dioxide
124-38-9

carbon dioxide

Conditions
ConditionsYield
With copper phthalocyanine at 90℃; for 0.583333h; Mechanism; Reagent/catalyst; Temperature; Time;A n/a
B 100%
C n/a
toluene
108-88-3

toluene

A

tetrachloromethane
56-23-5

tetrachloromethane

B

hexachlorobenzene
118-74-1

hexachlorobenzene

Conditions
ConditionsYield
With chlorine; aluminum oxide; molybdenum(VI) oxide at 380 - 400℃; for 0.00277778h; other metal oxide catalysts;A 98.2%
B 96.3%
m-xylene
108-38-3

m-xylene

A

tetrachloromethane
56-23-5

tetrachloromethane

B

hexachlorobenzene
118-74-1

hexachlorobenzene

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); chlorine; aluminum oxide; molybdenum(VI) oxide at 380 - 400℃; for 0.00277778h;A 95.15%
B 98.06%
phosgene
75-44-5

phosgene

A

tetrachloromethane
56-23-5

tetrachloromethane

B

carbon dioxide
124-38-9

carbon dioxide

Conditions
ConditionsYield
iron(III) chloride Kinetics; heating in a sealed tube, 350°C 26 atm 20 h;A 86%
B n/a
iron(III) chloride Kinetics; heating in a sealed tube, 400°C 28 atm 17 h;A 84%
B n/a
aluminium trichloride Kinetics; heating in a sealed tube, 400°C 144 atm 2 h;A 81%
B n/a
toluene
108-88-3

toluene

A

tetrachloromethane
56-23-5

tetrachloromethane

B

hexachlorobenzene
118-74-1

hexachlorobenzene

C

α,α,2,3,4,5,6-pentachlorotoluene
2136-78-9

α,α,2,3,4,5,6-pentachlorotoluene

Conditions
ConditionsYield
With chlorine; KSK silica gel; magnesium chloride at 295 - 320℃; for 0.005h; other methal oxide and chloride catalysts;A n/a
B n/a
C 84%
arsenic pentafluoride
7784-36-3

arsenic pentafluoride

trans-CF3SF4Cl
42179-04-4

trans-CF3SF4Cl

A

tetrachloromethane
56-23-5

tetrachloromethane

B

chlorodifluorosulfur(IV) hexafluoroarsenate
113250-69-4

chlorodifluorosulfur(IV) hexafluoroarsenate

Conditions
ConditionsYield
In neat (no solvent) The react. mixt. is warmed slowly from -78°C to +25°C over a period of 12-16 h.; Elem.anal.;A n/a
B 70%
In dichloromethane The react. mixt. is warmed slowly from -78°C to +25°C over a period of 12-16 h.; Elem.anal.;A n/a
B 70%
In neat (no solvent) Rapid warmup of the react. mixt.; Elem.anal.;A n/a
B 50%
In dichloromethane Rapid warmup of the react. mixt.; Elem.anal.;A n/a
B 50%
methane
34557-54-5

methane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

methylene chloride
74-87-3

methylene chloride

C

dichloromethane
75-09-2

dichloromethane

D

chloroform
67-66-3

chloroform

E

methanesulfonyl chloride
124-63-0

methanesulfonyl chloride

Conditions
ConditionsYield
With hydrogenchloride; sulfur dioxide; chlorine at 63 - 67℃; under 6750.68 Torr; Photolysis;A n/a
B n/a
C n/a
D n/a
E 55%
phosgene
75-44-5

phosgene

hydrogen fluoride
7664-39-3

hydrogen fluoride

chlorine
7782-50-5

chlorine

A

tetrachloromethane
56-23-5

tetrachloromethane

B

chlorotrifluoromethane
75-72-9

chlorotrifluoromethane

C

Dichlorodifluoromethane
75-71-8

Dichlorodifluoromethane

D

trichlorofluoromethane
75-69-4

trichlorofluoromethane

Conditions
ConditionsYield
With catalyst : charcoal heating in autoclave, 350°C, 6 h, charcoal impregnated with FeCl3;A 7%
B 13%
C 47%
D 7%
perfluoro(N,N-diethylcarbamoyl fluoride)
105968-23-8

perfluoro(N,N-diethylcarbamoyl fluoride)

A

tetrachloromethane
56-23-5

tetrachloromethane

B

phosgene
75-44-5

phosgene

C

perfluoro(2,4,4-trichloro-3-azapentene-2)

perfluoro(2,4,4-trichloro-3-azapentene-2)

Conditions
ConditionsYield
With aluminium trichloride at 100℃; for 100h;A 0.03 g
B 0.02 g
C 38.7%
Dichlorodifluoromethane
75-71-8

Dichlorodifluoromethane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

chlorotrifluoromethane
75-72-9

chlorotrifluoromethane

Conditions
ConditionsYield
In neat (no solvent) equilibrium over catalyst; equilibrium constant at 290-540°C;;A n/a
B 22%
Bromotrichloromethane
75-62-7

Bromotrichloromethane

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With mercury dichloride In ethanol reaction in abs. alcohol at 100°C for 6 h;;17%
With chlorine im Licht;
With chlorine at 100℃;
methane
34557-54-5

methane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

methylene chloride
74-87-3

methylene chloride

C

dichloromethane
75-09-2

dichloromethane

D

chloroform
67-66-3

chloroform

Conditions
ConditionsYield
With chlorine for 4h; Product distribution; Ambient temperature; var. catalysts and times;A 4.8%
B 6.5%
C 15%
D 14%
With molybdenum(V) chloride at 699.9℃; Product distribution; Mechanism; var. time, temp., and transition-metal chlorides; var. methane and argon flow rates;
With copper dichloride In melt at 449.9℃; Kinetics; Product distribution; further temperatures and concentrations;
maleic anhydride
108-31-6

maleic anhydride

1-(1-cyclopenten-1-yl)-naphthalene
58195-37-2

1-(1-cyclopenten-1-yl)-naphthalene

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
at 168℃;
carbon disulfide
75-15-0

carbon disulfide

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With chlorine
With iodine; chlorine
carbon disulfide
75-15-0

carbon disulfide

A

tetrachloromethane
56-23-5

tetrachloromethane

B

hexachloroethane
67-72-1

hexachloroethane

Conditions
ConditionsYield
With chlorine
phosgene
75-44-5

phosgene

Carbonyl fluoride
353-50-4

Carbonyl fluoride

A

tetrachloromethane
56-23-5

tetrachloromethane

B

chlorotrifluoromethane
75-72-9

chlorotrifluoromethane

C

Dichlorodifluoromethane
75-71-8

Dichlorodifluoromethane

D

trichlorofluoromethane
75-69-4

trichlorofluoromethane

Conditions
ConditionsYield
at 420 - 450℃; Produkt 5-8:Carbonylchloridfluorid,Carbonylchlorid,Kohlendioxid,Tetrafluormethan;
at 450℃; Produkt 5-8:Carbonylchloridfluorid,Carbonylchlorid,Kohlendioxid,Tetrafluormethan;
phosgene
75-44-5

phosgene

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With phosphorus pentachloride at 370℃;
2-benzothiazolylsulfenyl chloride
33405-92-4

2-benzothiazolylsulfenyl chloride

A

tetrachloromethane
56-23-5

tetrachloromethane

B

S-benzothiazol-2-yl-N-phenyl-thiohydroxylamine
29418-16-4

S-benzothiazol-2-yl-N-phenyl-thiohydroxylamine

Conditions
ConditionsYield
With aniline
With aniline
1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
at 700 - 800℃; Chlorierung;
thiophosgene
463-71-8

thiophosgene

A

carbon disulfide
75-15-0

carbon disulfide

B

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With ammonium chloride at 200℃;
With aluminium trichloride at 100℃;
With iron at 37℃;
at 200℃;
thiophosgene
463-71-8

thiophosgene

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With iron at 37℃;
1,2-dichloro-2-methylpropane
594-37-6

1,2-dichloro-2-methylpropane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

hexachloroethane
67-72-1

hexachloroethane

Conditions
ConditionsYield
With chlorine at 400℃; under 51485.6 Torr;
methane
34557-54-5

methane

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
With pumice stone; chlorine at 380 - 400℃;
With chlorine at 305℃; beim Belichtung und Leiten des Reaktionsgemisches ueber Aktivkohle bei 453grad;
With air; pumice stone; chlorine; copper dichloride at 430℃;
methane
34557-54-5

methane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

chloroform
67-66-3

chloroform

Conditions
ConditionsYield
With nitrosylchloride at 350℃;
With chlorine at 550℃; under 4897.34 Torr; Temperature; Flow reactor;
1,1,2,3,4,5,5,5-octachloro-penta-1,3-diene
1888-73-9

1,1,2,3,4,5,5,5-octachloro-penta-1,3-diene

A

tetrachloromethane
56-23-5

tetrachloromethane

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

C

Hexachlorobutadiene
87-68-3

Hexachlorobutadiene

D

hexachlorocyclopentadiene
77-47-4

hexachlorocyclopentadiene

Conditions
ConditionsYield
at 450 - 500℃; Reaktion mit:Produkt5:Hexachlorbenzol;bei der Pyrolyse des Dampfes Hexachloraethan;bei der Pyrolyse in fluessiger Phase Octachlorcyclopenten und ein Octachlor-1-methylen-cyclopenten.;
at 270℃; Reaktion mit:Produkt5:Hexachlorbenzol;bei der Pyrolyse des Dampfes Hexachloraethan,bei der Pyrolyse in fluessiger Phase Octachlorcyclopenten und ein Octachlor-1-methylen-cyclopenten.;
ethane
74-84-0

ethane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

Conditions
ConditionsYield
With chlorine bei hoeherer Temperatur oder im Licht auch mit Chlorderivate des Edukts 1.;
With chlorine bei hoeherer Temperatur oder im Licht auch mit Chlorderivate des Edukts 1.;
propane
74-98-6

propane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

Conditions
ConditionsYield
With chlorine bei hoeherer Temperatur oder im Licht auch mit Chlorderivate des Edukts 1.;
With chlorine bei hoeherer Temperatur oder im Licht auch mit Chlorderivate des Edukts 1.;
propane
74-98-6

propane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

C

hexachloroethane
67-72-1

hexachloroethane

D

hexachlorobenzene
118-74-1

hexachlorobenzene

Conditions
ConditionsYield
Chlorierung und Spaltung der Reaktionsprodukten im Licht bei 460-480grad;
Chlorierung und Spaltung der Reaktionsprodukten an Aktivkohle bei 600-650grad;
Chlorierung und Spaltung der Reaktionsprodukten im Licht bei 460-480grad;
Chlorierung und Spaltung der Reaktionsprodukten in CCl4 bei 200grad und 40-50 at;
Chlorierung und Spaltung der Reaktionsprodukten in CCl4 oder CCl4 + Tetrachloraethylen als Verduennungsmittel bei 610-625grad;
dichloromethane
75-09-2

dichloromethane

tetrachloromethane
56-23-5

tetrachloromethane

Conditions
ConditionsYield
at 400 - 700℃; Chlorierung in Gegenwart von Katalysatoren;
dichloromethane
75-09-2

dichloromethane

A

tetrachloromethane
56-23-5

tetrachloromethane

B

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

C

hexachloroethane
67-72-1

hexachloroethane

D

hexachlorobenzene
118-74-1

hexachlorobenzene

Conditions
ConditionsYield
at 400 - 700℃; Chlorierung;
tetrachloromethane
56-23-5

tetrachloromethane

ethyl vinyl ether
109-92-2

ethyl vinyl ether

Ethyl-(1,3,3,3-tetrachlor-propyl)-ether
1561-41-7

Ethyl-(1,3,3,3-tetrachlor-propyl)-ether

Conditions
ConditionsYield
With dibenzoyl peroxide100%
With dibenzoyl peroxide for 2h; Heating;90.3%
With pyridine; dibenzoyl peroxide
tetrachloromethane
56-23-5

tetrachloromethane

N-formyl-N-(4-methylpent-4-enyl)-4-methylbenzenesulfonamide
691900-33-1

N-formyl-N-(4-methylpent-4-enyl)-4-methylbenzenesulfonamide

N-(2,2-dichlorovinyl)-N-(4-methylpent-4-enyl)-4-methylbenzenesulfonamide
691900-36-4

N-(2,2-dichlorovinyl)-N-(4-methylpent-4-enyl)-4-methylbenzenesulfonamide

Conditions
ConditionsYield
With triphenylphosphine In tetrahydrofuran at 60℃; for 6h;100%
tetrachloromethane
56-23-5

tetrachloromethane

bis(cyclopentadienyl)chromium
1271-24-5

bis(cyclopentadienyl)chromium

(C5H5)2Cr(1+)*(C5H5)CrCl3(1-)={(C5H5)2Cr}{C5H5CrCl3}

(C5H5)2Cr(1+)*(C5H5)CrCl3(1-)={(C5H5)2Cr}{C5H5CrCl3}

Conditions
ConditionsYield
In tetrahydrofuran with cooling; pptn.;;100%
In tetrahydrofuran addn. of CCl4 to Cr complex soln. with cooling in H2O bath;;100%
In tetrahydrofuran addn. of CCl4 to Cr complex soln. with cooling in H2O bath;;100%
tetrachloromethane
56-23-5

tetrachloromethane

CpRe(CO)2(COCH3)(CH3)

CpRe(CO)2(COCH3)(CH3)

A

tricarbonylcyclopentadienylrhenium

tricarbonylcyclopentadienylrhenium

B

acetyl chloride
75-36-5

acetyl chloride

C

dimethylglyoxal
431-03-8

dimethylglyoxal

D

acetone
67-64-1

acetone

Conditions
ConditionsYield
With CO In dichloromethane-d2 Irradiation (UV/VIS); 355-385 nm; 20 atm CO;;A 100%
B n/a
C n/a
D n/a
tetrachloromethane
56-23-5

tetrachloromethane

(2,4,6-tris{bis(trimethylsilyl)methyl}phenyl)(phenyl)dihydrostannane
135139-67-2

(2,4,6-tris{bis(trimethylsilyl)methyl}phenyl)(phenyl)dihydrostannane

dichloro(phenyl){2,4,6-tris{bis(trimethylsilyl)methyl}phenyl}stannane

dichloro(phenyl){2,4,6-tris{bis(trimethylsilyl)methyl}phenyl}stannane

Conditions
ConditionsYield
In tetrachloromethane dissoln. stannane in CCl4; stirring soln. at room temp., 10h;; removal of solvent; recrystn. from ethanol; elem. anal.;;100%
tetrachloromethane
56-23-5

tetrachloromethane

(mesityl)(2,4,6-tris{bis(trimethylsilyl)methyl}phenyl)dihydrostannane
135139-80-9

(mesityl)(2,4,6-tris{bis(trimethylsilyl)methyl}phenyl)dihydrostannane

dichloro(mesityl){2,4,6-tris{bis(trimethylsilyl)methyl}phenyl}stannane

dichloro(mesityl){2,4,6-tris{bis(trimethylsilyl)methyl}phenyl}stannane

Conditions
ConditionsYield
In tetrachloromethane dissoln. stannane in CCl4; stirring soln. at room temp., 10h;; removal of solvent; recrystn. from ethanol; elem. anal.;;100%
tetrachloromethane
56-23-5

tetrachloromethane

trans-[Rh(OH)(C=CHPh)(PiPr3)2]

trans-[Rh(OH)(C=CHPh)(PiPr3)2]

trans-RhCl(=C=C(H)(Ph))(PiPr3)2

trans-RhCl(=C=C(H)(Ph))(PiPr3)2

Conditions
ConditionsYield
In benzene-d6 Ar-atmosphere; stirring (room temp., 1.5 h); detd. by (1)H and (31)P NMR spectroscopy;100%
tetrachloromethane
56-23-5

tetrachloromethane

(CH(Si(CH3)3)2)4CH2CH2Ge2
164074-36-6

(CH(Si(CH3)3)2)4CH2CH2Ge2

[(((CH3)3Si)2CH)2Ge(Cl)CH2]2

[(((CH3)3Si)2CH)2Ge(Cl)CH2]2

Conditions
ConditionsYield
In tetrachloromethane Irradiation (UV/VIS); irradn. (>300 nm);100%
tetrachloromethane
56-23-5

tetrachloromethane

((C6H5)3P)2Ru(H)2(PC4(CH3)4)2Zr(Cl)2

((C6H5)3P)2Ru(H)2(PC4(CH3)4)2Zr(Cl)2

((C6H5)3P)2Ru(H)(Cl)(PC4(CH3)4)2Zr(Cl)2

((C6H5)3P)2Ru(H)(Cl)(PC4(CH3)4)2Zr(Cl)2

Conditions
ConditionsYield
In benzene-d6 N2-atmosphere, NMR tube, 2 h; detd. by NMR spectroscopy;100%
tetrachloromethane
56-23-5

tetrachloromethane

[(CO)3Mo(C5H4C2H4NHC(O)C14H7O2)]2
165750-91-4

[(CO)3Mo(C5H4C2H4NHC(O)C14H7O2)]2

(C14H7O2C(O)NHC2H4C5H4)Mo(CO)3(Cl)
165750-93-6

(C14H7O2C(O)NHC2H4C5H4)Mo(CO)3(Cl)

Conditions
ConditionsYield
In tetrahydrofuran Irradiation (UV/VIS); N2-atmosphere; irradn. (λ > 525 nm, 1 min); detd. by IR spectroscopy;100%
tetrachloromethane
56-23-5

tetrachloromethane

ethyl 2-(4-chloro-2-fluorophenyl)-2-oxoacetate

ethyl 2-(4-chloro-2-fluorophenyl)-2-oxoacetate

ethyl 3,3-dichloro-2-(4-chloro-2-fluorophenyl)acrylate

ethyl 3,3-dichloro-2-(4-chloro-2-fluorophenyl)acrylate

Conditions
ConditionsYield
With triphenylphosphine In dichloromethane at 20℃; for 22h; Cooling with ice;100%
With triphenylphosphine In dichloromethane at 20℃; for 22h; Cooling with ice;100%
tetrachloromethane
56-23-5

tetrachloromethane

(2S,3S,4R)-(+)-3-(tert-butyldimethylsilyl)oxy-5-formyloxy-4-(methoxymethyl)oxy-2-vinylpentyl pivaloate

(2S,3S,4R)-(+)-3-(tert-butyldimethylsilyl)oxy-5-formyloxy-4-(methoxymethyl)oxy-2-vinylpentyl pivaloate

(2S,3S,4R)-(+)-3-(tert-butyldimethylsilyl)oxy-5-(2,2-dichloroethenyl)oxy-4-(methoxymethyl)oxy-2-vinylpentyl pivaloate

(2S,3S,4R)-(+)-3-(tert-butyldimethylsilyl)oxy-5-(2,2-dichloroethenyl)oxy-4-(methoxymethyl)oxy-2-vinylpentyl pivaloate

Conditions
ConditionsYield
With triethylamine; triphenylphosphine In dichloromethane at 20℃; for 9h; Inert atmosphere;100%
tetrachloromethane
56-23-5

tetrachloromethane

2-chloropropene
557-98-2

2-chloropropene

1,1,1,3,3-pentachlorobutane
21981-33-9

1,1,1,3,3-pentachlorobutane

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tris[2-(methylamino)ethyl]amine; copper(l) chloride at 80℃; for 1h; Reagent/catalyst; Temperature; Autoclave; Inert atmosphere;99.6%
With 1-ethyl-3-methylimidazol-3-ium ethyl sulfate; copper(l) iodide at 130℃; Product distribution / selectivity;95.7%
With 1-ethyl-3-methylimidazol-3-ium ethyl sulfate; ferric(III) bromide at 130℃; Product distribution / selectivity;93.5%
styrene
292638-84-7

styrene

tetrachloromethane
56-23-5

tetrachloromethane

1,1,1,3-tetrachloro-3-phenylpropane
23691-27-2

1,1,1,3-tetrachloro-3-phenylpropane

Conditions
ConditionsYield
With dodecane; [RuH(η5-[9-SMe2-7,8-C2B9H10])(PPh3)2] In toluene at 40℃; for 16h; Kharash addition;99%
With N2[(RuCl2)2(1,3,5-iPr3C6H3)(tricyclohexylphosphine]2 In toluene at 40℃; for 2h;98%
With NbCl3(N,N′-bis-(2,6-diisopropylphenyl)-1,4-diaza-2,3-dimethyl-1,3-butadiene) In benzene-d6 at 100℃; for 3h; Catalytic behavior; Kinetics; Mechanism; Reagent/catalyst; Solvent; Temperature; Inert atmosphere; Schlenk technique; Glovebox;97%
tetrachloromethane
56-23-5

tetrachloromethane

methacrylic acid methyl ester
80-62-6

methacrylic acid methyl ester

methyl 2,4,4,4-tetrachloro-2-methylbutanoate
25335-10-8

methyl 2,4,4,4-tetrachloro-2-methylbutanoate

Conditions
ConditionsYield
With dodecane; [RuH(η5-[9-SEtPh-7,8-C2B9H10])(PPh3)2] In toluene at 40℃; for 16h; Kharash addition;99%
With homobimetallic; ruthenium(II) In toluene at 85℃; for 8h;94%
With dodecane; dichloro(3-phenyl-1H-indene-1-ylidene)(bistriphenylphosphine)ruthenium(II) In toluene at 80℃; for 17h; Product distribution; Further Variations:; Catalysts; atom transfer radical addition;94%
tetrachloromethane
56-23-5

tetrachloromethane

N-butyl-N-formyl-4-methyl-benzenesulfonamide
312329-73-0

N-butyl-N-formyl-4-methyl-benzenesulfonamide

N-butyl-N-(2,2-dichlorovinyl)-4-methyl-benzenesulfonamide
312329-78-5

N-butyl-N-(2,2-dichlorovinyl)-4-methyl-benzenesulfonamide

Conditions
ConditionsYield
With triphenylphosphine In tetrahydrofuran at 60℃; for 1h; Condensation; Dichloromethylenation;99%
With triphenylphosphine In tetrahydrofuran at 60℃; for 7h; Corey-Fuchs reaction;99%
tetrachloromethane
56-23-5

tetrachloromethane

dicarbonyl(η(5)-cyclopentadienyl)[2,4,6-tri(tert-butyl)-phenyl-λ(4)-phosphanediyl]molybdenum(II)
220821-72-7

dicarbonyl(η(5)-cyclopentadienyl)[2,4,6-tri(tert-butyl)-phenyl-λ(4)-phosphanediyl]molybdenum(II)

dicarbonyl(η(5)-cyclopentadienyl)([2,4,6-tri(tert-butyl)-phenyl](chloro)-λ(4)-phosphanediyl)molybdenum(II)
220821-76-1

dicarbonyl(η(5)-cyclopentadienyl)([2,4,6-tri(tert-butyl)-phenyl](chloro)-λ(4)-phosphanediyl)molybdenum(II)

Conditions
ConditionsYield
In pentane byproducts: CHCl3; N2-atmosphere; stirring equimolar amts. (room temp., 3 d); solvent removal (vac.), washing (pentane), drying (vac.); elem. anal.;99%
tetrachloromethane
56-23-5

tetrachloromethane

(η(5);η(5)-fulvalene)W2(CO)4(P(C6H5)2CH3)2H2
245730-36-3

(η(5);η(5)-fulvalene)W2(CO)4(P(C6H5)2CH3)2H2

cis,cis-(η(5):η(5)-fulvalene)W2(CO)4(P(C6H5)2CH3)2Cl2
245759-98-2, 245730-37-4

cis,cis-(η(5):η(5)-fulvalene)W2(CO)4(P(C6H5)2CH3)2Cl2

Conditions
ConditionsYield
In dichloromethane inert atmosphere; excess of CCl4, stirring (room temp., 1 d; pptn.); vol. reduction (vac.), hexane addn., collection (filtration), washing (hexane), drying (reduced pressure);99%
tetrachloromethane
56-23-5

tetrachloromethane

Ru(H)2(Ph2PNMeNMePPh2)2

Ru(H)2(Ph2PNMeNMePPh2)2

A

RuCl2(Ph2PNMeNMePPh2)2

RuCl2(Ph2PNMeNMePPh2)2

trans-Ru(H)(Cl)(Ph2PNMeNMePPh2)2

trans-Ru(H)(Cl)(Ph2PNMeNMePPh2)2

Conditions
ConditionsYield
A 0%
B 99%
tetrachloromethane
56-23-5

tetrachloromethane

(CO)RuC20N4H8[C6H3(CH3)2]4
165259-30-3

(CO)RuC20N4H8[C6H3(CH3)2]4

RuCl2(5,10,15,20-tetrakis(2,6-dimethylphenyl)porphyrinato)
165259-31-4

RuCl2(5,10,15,20-tetrakis(2,6-dimethylphenyl)porphyrinato)

Conditions
ConditionsYield
In tetrachloromethane heating 2 h;99%
tetrachloromethane
56-23-5

tetrachloromethane

trans-1,2-dichloro-1,2,3,4-tetrakis[di-tert-butyl(methyl)silyl]-(3)Δ-1,2,3,4-disilagermastannetene

trans-1,2-dichloro-1,2,3,4-tetrakis[di-tert-butyl(methyl)silyl]-(3)Δ-1,2,3,4-disilagermastannetene

trans,trans,trans-1,2,3,4-tetrachloro-1,2,3,4-tetrakis[di-tert-butyl(methyl)silyl]-1,2,3,4-disilagermastannetane

trans,trans,trans-1,2,3,4-tetrachloro-1,2,3,4-tetrakis[di-tert-butyl(methyl)silyl]-1,2,3,4-disilagermastannetane

Conditions
ConditionsYield
In tetrachloromethane reaction of cyclic Si2GeSn-compd. with CCl4;99%
tetrachloromethane
56-23-5

tetrachloromethane

triphenylmethane
519-73-3

triphenylmethane

trityl chloride
76-83-5

trityl chloride

Conditions
ConditionsYield
at 250℃; under 52505.3 Torr; for 7h; Inert atmosphere;99%
1-benzofurane
271-89-6

1-benzofurane

methanol
67-56-1

methanol

tetrachloromethane
56-23-5

tetrachloromethane

methyl benzofuran-2-carboxylate
1646-27-1

methyl benzofuran-2-carboxylate

Conditions
ConditionsYield
With iron(II) bromide at 160℃; for 4h; Inert atmosphere; sealed ampule; regioselective reaction;99%
tetrachloromethane
56-23-5

tetrachloromethane

[IrH(PPh2(o-C6H4CO))2(NH2C6H11)]*CH2Cl2

[IrH(PPh2(o-C6H4CO))2(NH2C6H11)]*CH2Cl2

[IrCl(PPh2(o-C6H4CO))2(NH2C6H11)]
1356400-09-3

[IrCl(PPh2(o-C6H4CO))2(NH2C6H11)]

Conditions
ConditionsYield
In tetrachloromethane (N2) suspn. Ir complex in CCl4 was refluxed for 1 h; solvent was evapd., residue was washed with Et2O and vac.-drieed; elem. anal.;99%
tetrachloromethane
56-23-5

tetrachloromethane

benzene-d6
1076-43-3

benzene-d6

bis-pentadeuteriophenyl-methane
35782-14-0

bis-pentadeuteriophenyl-methane

Conditions
ConditionsYield
With triethylsilane at 70℃; for 72h; Catalytic behavior;99%
tetrachloromethane
56-23-5

tetrachloromethane

1,1,1-trifluoropropylene
677-21-4

1,1,1-trifluoropropylene

1,1,1,3-tetrachloro-4,4,4-trifluorobutane
129612-89-1

1,1,1,3-tetrachloro-4,4,4-trifluorobutane

Conditions
ConditionsYield
With phosphoric acid tributyl ester; iron at 110℃; for 3h;98.5%
With 2,2'-azobis(isobutyronitrile); 4-fluoroaniline; copper(I) bromide at 60℃; for 4h; Reagent/catalyst; Temperature; Autoclave; Inert atmosphere;94.2%
iron(III) chloride; phosphoric acid tributyl ester; iron at 80 - 100℃; under 2311.54 Torr;90%
tetrachloromethane
56-23-5

tetrachloromethane

ethene
74-85-1

ethene

1,1,1,3-tetrachloropropane
1070-78-6

1,1,1,3-tetrachloropropane

Conditions
ConditionsYield
With iron; trimethyl orthoformate at 100℃; under 1500.15 Torr; for 1h;98.1%
With iron(III) chloride; phosphoric acid tributyl ester; iron at 110℃; under 5931.67 Torr; Reagent/catalyst; Pressure; Flow reactor; Large scale;96%
iron(III) chloride; triethyl phosphate; iron at 110 - 134℃; under 1875.19 - 6000.6 Torr; Autoclave; Inert atmosphere;91%

56-23-5Relevant articles and documents

-

Johnson et al.

, p. 499 (1959)

-

Newton,Rollefson

, p. 718 (1940)

Cheng et al.

, p. 435 (1971)

Cadman, P.,Simons, J. P.

, p. 631 - 641 (1966)

Changing the product state distribution and kinetics in photocatalytic surface reactions using pulsed laser irradiation [11]

Miller,Borisch,Raftery,Francisco

, p. 8265 - 8266 (1998)

-

Boswell,McLaughlin

, (1930)

Kiprianow,Kussner

, (1936)

A new strategy to improve catalytic activity for chlorinated volatile organic compounds oxidation over cobalt oxide: Introduction of strontium carbonate

Liu, Hao,Shen, Kai,Zhao, Hailin,Jiang, Yongjun,Guo, Yanglong,Guo, Yun,Wang, Li,Zhan, Wangcheng

, (2021)

Co3O4–SrCO3 catalysts with various Sr/Co ratios were synthesized by the coprecipitation method, and their properties were tuned by adjusting the Sr/Co molar ratio. Furthermore, the catalytic combustion of vinyl chloride (VC) was used to evaluate the catalytic activity of the Co3O4–SrCO3 catalysts. The physicochemical properties of the catalysts were studied by X-ray diffraction (XRD), infrared spectroscopy (IR), N2 sorption, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), H2 temperature-programmed reduction (H2-TPR) and VC temperature-programmed desorption (VC-TPD). The results showed that the Co3O4–SrCO3 catalysts exhibited composite phases of Co3O4 and SrCO3 and the presence of interactions between them. As a result, the crystallization of the Co3O4 phase for the Co3O4–SrCO3 catalysts was restrained, and the state of Co on the catalyst surface was adjusted. Furthermore, the reducibility and VC adsorption capacity of the Co3O4–SrCO3 catalysts with Sr/Co molar ratios of 0.2 and 0.4 were enhanced compared with those of the Co3O4 catalyst. Otherwise, catalyst SrCo-0.4 exhibited excellent catalytic performance, accompanied by the highest reaction rate and the lowest apparent activation energy. More importantly, the optimized SrCO3–Co3O4 catalyst showed superior catalytic performance compared with other transition metal oxides in previous literature. These results brought a new idea for promoting the activity of transition metal catalysts for the deep oxidation of chlorinated volatile organic compounds (CVOCs) by introducing alkaline-earth metal salts.

Nanocrystal metal oxide-chlorine adducts: Selective catalysts for chlorination of alkanes [3]

Sun, Naijian,Klabunde, Kenneth J.

, p. 5587 - 5588 (1999)

-

Onion-Like Graphene Carbon Nanospheres as Stable Catalysts for Carbon Monoxide and Methane Chlorination

Centi, Gabriele,Barbera, Katia,Perathoner, Siglinda,Gupta, Navneet K.,Ember, Erika E.,Lercher, Johannes A.

, p. 3036 - 3046 (2015)

Thermal treatment induces a modification in the nanostructure of carbon nanospheres that generates ordered hemi-fullerene-type graphene shells arranged in a concentric onion-type structure. The catalytic reactivity of these structures is studied in comparison with that of the parent carbon material. The change in the surface reactivity induced by the transformation of the nanostructure, characterized by TEM, XRD, X-ray photoelectron spectroscopy (XPS), Raman, and porosity measurements, is investigated by multipulses of Cl2 in inert gas or in the presence of CH4 or CO. The strained C-C bonds (sp2-type) in the hemi-fullerene-type graphene shells induce unusually strong, but reversible, chemisorption of Cl2 in molecular form. The active species in CH4 and CO chlorination is probably in the radical-like form. Highly strained C-C bonds in the parent carbon materials react irreversibly with Cl2, inhibiting further reaction with CO. In addition, the higher presence of sp3-type defect sites promotes the formation of HCl with deactivation of the reactive C-C sites. The nano-ordering of the hemi-fullerene-type graphene thus reduces the presence of defects and transforms strained C-C bonds, resulting in irreversible chemisorption of Cl2 to catalytic sites able to perform selective chlorination. Tidy up the carbon! CO and CH4 chlorination over hemi-fullerene-type graphene is described. The surface nano-ordering, induced by thermal treatment, transforms strained C-C bond sites resulting in irreversible Cl2 chemisorption to catalytic sites that are able to selectively chlorinate CO and CH4.

-

Mare, G. R. De,Huybrechts, G.

, p. 1311 - 1318 (1968)

-

-

Petersen, D. E.,Pitzer, K. S.

, p. 1252 - 1253 (1957)

-

A process of preparing methyl chloride using multistage reaction

-

Paragraph 0092-0100; 0112; 0120, (2020/06/10)

The present invention relates to a method of producing methyl chloride by multistage reactions. The method of the present invention comprises: a) a chlorination step for sufficiently increasing the conversion rate of methane, which is an initial reactant; and b) a subsequent reaction step for actively utilizing hydrogen chloride (HCl), which is a hazardous byproduct of chlorination, efficiently treating harmful hydrogen chloride, and at the same time, improving the overall production of methyl chloride.COPYRIGHT KIPO 2020

METHOD OF CONVERTING ALKANES TO ALCOHOLS, OLEFINS AND AROMATICS

-

Paragraph 0054-0055, (2019/08/08)

A cost-effective and energy-efficient process is disclosed for converting a methane-containing gas to a methane sulfonyl halide comprising reacting the methane-containing gas, under illumination by a light emitting diode (LED) source, with a sulfuryl halide or a halogen in the presence of sulfur dioxide, whereby the methane sulfonyl halide is obtained for isolation or further reactions. The further reactions may sequentially include, in order, contacting the methane sulfonyl halide with a catalyst complex to form a methane monohalide; catalytically converting the methane monohalide to a value-added chemical such as an alcohol, an olefin, an aromatic, derivatives thereof, or mixtures thereof; releasing any hydrogen halide formed in the process; and converting the hydrogen halide to a halogen and recycling it for re-use.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 56-23-5