594-42-3 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 594-42-3 differently. You can refer to the following data:
1. CLEAR YELLOW LIQUID
2. Perchloromethyl mercaptan is a pale yellow oily liquid with a foul-smelling, unbearable, acrid odor
Uses
Different sources of media describe the Uses of 594-42-3 differently. You can refer to the following data:
1. Organic synthesis, dye intermediate, fumigant.
2. Production of fungicides; vulcanizing
accelerator in rubber industry
3. Perchloromethyl Mercaptan is used as a reactant in the preparation of thio- and selenoesters of triflic acid via a route to thio- and selenosulfonates from disulfides and diselenides.
Synthesis Reference(s)
Tetrahedron, 48, p. 8065, 1992 DOI: 10.1016/S0040-4020(01)80477-4
General Description
A yellow oily liquid with an offensive odor. Insoluble in water. Density 1.72 g / cm3. Hence sinks in water. Nonflammable but supports combustion. Very toxic by inhalation or skin absorption.
Air & Water Reactions
Insoluble in water. Slowly decomposed by moisture in the air. Reacts with hot water to give carbon dioxide, hydrochloric acid and sulfur.
Reactivity Profile
Perchloromethylmercaptan is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Reacts readily with oxidizing agents.
Health Hazard
May cause death or permanent injury after short exposure to small quantities, strong irritant to eyes and skin. Inhalation may cause severe irritation of the upper respiratory tract. It also is a strong irritant to the eyes and skin. Brief exposure to lower concentrations may produce central nervous system depression and lung, liver, and heart congestion. Severe exposures may be fatal. Exposure of eyes may lead to severe conjunctivitis or corneal damage. The liquid is irritating to the skin, and may be absorbed through the skin in quantities sufficient to cause general toxic effects. Ingestion may cause damage to mucous membranes and result in pain and burning of the mouth and throat, nausea, vomiting, cramps, and diarrhea. In severe cases, tissue ulceration and CNS depression may occur.
Fire Hazard
Very irritating vapors formed from hot material; may form phosgene gas, hydrogen chloride, and sulfur dioxide. At high temperatures Perchloromethylmercaptan will decompose to carbon tetrachloride, sulfur chloride, heavy oil polymers, phosgene gas, hydrogen chloride, and sulfur dioxide. Reacts with iron or steel, evolving carbon tetrachloride. Corrosive to most metals. Reacts with water only when hot to give carbon dioxide, hydrochloric acid, and sulfur. Hazardous polymerization may not occur.
Safety Profile
Poison by ingestion, inhalation, and intravenous routes. A severe skin, eye, and mucous membrane irritant. When heated to decomposition it emits very toxic fumes of Cland SOx. See also MERCAPTANS
Potential Exposure
Perchloromethyl mercaptan is used as an intermediate for the synthesis of dyes and fungicides, such as Captan and Folpet. This chemical has been considered as a warfare tear gas because of its highly irritant properties.
Shipping
UN1670 Perchloromethyl mercaptan, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Inhalation Hazard Zone B.
Incompatibilities
Water contact forms HCl, sulfur and carbon dioxide. Reacts with alkalies, amines, hot water; alcohols, oxidizers, reducing agents; iron, and steel. Attacks most metals.
Waste Disposal
Incineration together with a flammable solvent in a furnace equipped with afterburner and scrubber.
Check Digit Verification of cas no
The CAS Registry Mumber 594-42-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,9 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 594-42:
(5*5)+(4*9)+(3*4)+(2*4)+(1*2)=83
83 % 10 = 3
So 594-42-3 is a valid CAS Registry Number.
InChI:InChI=1/CCl4S/c2-1(3,4)6-5
594-42-3Relevant articles and documents
A FUNGICIDAL COMPOUND AND PROCESS OF PREPARATION THEREOF
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Page/Page column 19-24, (2021/11/06)
The present invention relates to a fungicidal sulfenyl phthalimide compound of formula (I) and a compound of formula (II) wherein said compound of formula (I) and formula (II) are substantially free from unwanted impurity. Particularly the present invention relates to a process of preparation of compounds of formula (I) and (II) substantially free from unwanted impurity.
Radical Aromatic Trifluoromethylthiolation: Photoredox Catalysis vs. Base Mediation
Koziakov, Denis,Majek, Michal,Jacobi von Wangelin, Axel
supporting information, p. 6722 - 6725 (2017/12/07)
Trifluoromethyl aryl sulfides (Ar-SCF3) constitute highly attractive building blocks due to their exceptional lipophilicity and chemical properties. Related protocols of radical aromatic trifluoro-methylthiolation of arenediazonium salts were developed that are based on the facile generation of intermediate aryl radicals. Their reactions with commercial F3CS-SCF3 under very mild conditions afforded a diverse set of Ar-SCF3 (3]Cl2} with the weak base-mediated dark reaction documented higher synthetic efficiency of the former but higher operational simplicity of the latter strategy.
PROCESS FOR SYNTHESIS FIPRONIL
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Paragraph 0073, (2013/03/26)
The present disclosure relates to a process for trifluoromethylsulfinyl pyrazole compound of formula I, from a compound of formula III, wherein, R, R1 and R2 represent a group containing halogen group respectively and R3 represents a perhaloalkyl.
