76-14-2

Usage

Uses

Used in Refrigeration Industry:
1,2-Dichlorotetrafluoroethane is used as a refrigerant due to its desirable properties of low toxicity and flammability, making it suitable for cooling systems in various applications.
Used in Solvent Applications:
In the chemical industry, 1,2-Dichlorotetrafluoroethane serves as a solvent for specific processes, taking advantage of its chemical stability and properties.
Used in Aerosol Propellants:
1,2-Dichlorotetrafluoroethane is utilized as a propellant in aerosol products, providing the necessary force to dispense the contents of the container.
Health and Environmental Considerations:
Despite its uses, exposure to 1,2-Dichlorotetrafluoroethane can lead to symptoms such as dizziness, drowsiness, and nausea, with prolonged exposure potentially causing central nervous system depression. Moreover, due to its significant environmental impact, efforts are underway to phase out 1,2-Dichlorotetrafluoroethane in favor of more sustainable and eco-friendly alternatives.

Upstream product

• 75-71-8 Dichlorodifluoromethane 
• 630-20-6 1,1,1,2-tetrachoroethane 
• 354-25-6 2-chloro-1,1,2,2-tetrafluoroethane 
• 116-14-3 polytetrafluoroethylene 
• 76-13-1 1,1,2-Trichloro-1,2,2-trifluoroethane 
• 76-12-0 CFC-112a 
• 67-72-1 hexachloroethane 
• 598-88-9 1,2-dichloro-1,2-difluoroethene 
• 156-60-5 trans-1,2-dichloroethylene 
• 79-01-6 Trichloroethylene 
• 79-38-9 Chlorotrifluoroethylene 
• 2834-23-3 chlorodifluoroacetic anhydride 
• 1630-78-0 (E)-1,2-difluoroethene 
• 127-21-9 1,3-dichloro-1,1,3,3-tetrafluoro-propan-2-one 

Downstream Products

• 116-14-3 polytetrafluoroethylene 
• 75-46-7 trifluoromethan 
• 75-71-8 Dichlorodifluoromethane 
• 359-35-3 1,1,2,2-tetrafluoroethane 
• 354-25-6 2-chloro-1,1,2,2-tetrafluoroethane 
• 354-58-5 1,1,1-Trichloro-2,2,2-trifluoroethane 
• 76-16-4 Hexafluoroethane 
• 76-15-3 Chloropentafluoroethane 
• 76-13-1 1,1,2-Trichloro-1,2,2-trifluoroethane 
• 420-46-2 2,2,2-trifluoroethanol 
• 811-97-2 1,1,1,2-tetrafluoroethane 
• 2837-89-0 1,1,1,2-tetrafluoro-2-chloroethane 
• 75-10-5 Difluoromethane 
• 75-45-6 Chlorodifluoromethane 

Relevant academic research and scientific papers

High surface area chromium(III)fluoride – Preparation and some properties

Reaction of hydrated hydrazinium fluorochromate(III), [N2H6][CrF5]·H2O, with fluorine (F2)in anhydrous hydrogen fluoride (aHF)medium at room temperature yields completely amorphous CrF3-based materials with exceptionally high specific surface areas of 180–420 m2 g?1 (HS-CrF3). The stepwise reaction starts with the oxidative decomposition of the cationic part of the precursor with F2 that gives a CrF3 intermediate with low surface area. In the following step, part of Cr3+ is oxidized to Cr>3+, and in the presence of residual H2O/[H3O]+ species Cr>3+ fluoride oxides are formed. Formation of volatile chromium compounds, mainly CrO2F2, is apparently the key step in HS-CrF3 formation. Removal of these components from the final product reduces the oxygen content, and generates microporosity. The HS-CrF3 materials are completely amorphous with a bulk composition that is close to stoichiometric CrF3. Small amounts of Cr>3+ and oxygen in the final product very likely originate from the retained non-volatile CrOF3. The HS-CrF3 materials are Lewis acids and exhibit a high reactivity towards chlorofluorocarbons (CFCs)evidenced by substantial F/Cl exchange between CFCs and the solid fluoride. High reactivity of these new materials can be ascribed to their nanoscopic nature, exceptionally high surface area, and low levels of impurities. As such, they represent an interesting new class of benchmark fluoride materials applicable in fluorocarbon chemistry.

PROCESS FOR PREPARING FLUORINE-CONTAINING PROPANE

The present invention provides a process for preparing a fluorine-containing propane represented by the formula: CF2XCF2CH3 wherein X is F or Cl, the process including reacting tetrafluoroethylene and methyl chloride in the presence of an antimony halide represented by the formula: SbFxC5-x wherein x is a value of 0 to 5. According to the present invention, the fluorine-containing propane represented by the formula: CF2XCF2CH3 wherein X is F or Cl, which is useful as a starting material of 2,3,3,3-tetrafluoropropene (1234yf), can be obtained by a simple process, using relatively inexpensive starting materials.

Functionalized Copolymers of Terminally Functionalized Perfluoro (Alkyl Vinyl Ether) Reactor Wall for Photochemical Reactions, Process for Increasing Fluorine Content in Hydrocaebons and Halohydrocarbons and Olefin Production

A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a functionalized copolymer of a terminally functionalized perfluoro(alkyl vinyl ether). Also described is a photochemical reaction process using said reactor. The functional group of the copolymer of the apparatus and the process is selected from —SO2F, —SO2CI, —SO3H, —CO2R (where R is H or C1-C3 alkyl), —PO3H2, and salts thereof. A process for increasing the flourine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound, and (b) reacting the halogenated hydrocarbon in (a) with HF. A process for producing an olefinic compound, comprising: (a) photochlorinating at least one compound selected from hydrocarbons and halohydrocarbons containing at least two carbon atoms and at least two hydrogen atoms to produce a halogenated hydrocarbon containing a hydrogen substituent and a chlorine substituent on adjacent carbon atoms; and (b) subjecting the halogenated hydrocarbon produced in (a) to dehydrohalogenation.

PHOTOCHLORINATION AND FLUORINATION PROCESS FOR PREPARATION OF FLUORINE-CONTAINING HYDROCARBONS

A process is disclosed for increasing the fluorine content of at least one compound selected from halohydrocarbons and hydrocarbons. The process involves (a) directing light from a light source through the wall of a reactor to interact with reactants comprising chlorine and said at least one compound in said reactor, thereby producing a halogenated hydrocarbon having increased chlorine content by photochlorination, and (b) reacting said halogenated hydrocarbon produced by the photochlorination in (a) with HF; and is characterized by the light directed through the reactor wall being directed through a poly(perhaloolefin) polymer.

Process for preparing fluorohalogenethers

A process for preparing (per)fluorohalogenethers having general formula: wherein: A and A', equal to or different from each other, are selected among Cl, Br, H; m=1, 2; n=0, 1; R1 is a fluorinated substituent, preferably perfluorinated, selected from the following groups: C1-C20 linear or branched alkylic; C3-C7 cycloalkylic; aromatic, C6-C10 arylalkyl; heterocyclic or C5-C10 alkylheterocyclic; preferably perfluoroalkyl; R' is as defined in the application; by reaction of carbonyl compounds having formula: wherein: R1 and n are as above; u=0, 1; R' is as defined in the application; in liquid phase, with elemental fluorine and with olefinic compounds of formula:CAF=CA'F2 wherein A and A' are as above, at temperatures from -120°C to -20°C, preferably from -100°C to -40°C, optionally in the presnece of an inert solvent under the reaction conditions.

Process for preparing fluorohalogenethers

A process for preparing (per)fluorohalogenethers having general formula (I): (R)nC(F)mOCAF—CA′F2??(I) wherein: A and A′, equal to or different the one from the other, are Cl or Br or one is selected from A and A′ and hydrogen and the other is halogen selected from Cl, Br; R═F, or a fluorinated, preferably perfluorinated, substituent, selected from the following groups: linear or branched C1-C20 alkyl more preferably C1-C10; C3-C7 cycloalkyl; aromatic, C6-C10 arylalkyl, alkylaryl; C5-C10 heterocyclic or alkylheterocyclic; when R is fluorinated or perfluorinated alkyl, cycloalkyl, arylalkyl, alkylaryl, it can optionally contain in the chain one or more oxygen atoms; when R is fluorinated it can optionally contain one or more H atoms and/or one or more halogen atoms different from F: n is an integer and is 1 or 2; m=3-n; by reaction of carbonyl compounds having formula (II): (R)pC(F)q(O)??(II) wherein: p is an integer and is 1 or 2; q is an integer and is zero or 1, R is as above; in liquid phase with elemental fluorine and with olefinic compounds having formula (III): CAF═CA′F??(III) wherein A and A′ are as above, at temperatures in the range from ?120° C. to ?20° C.

Process for preparing (per) fluorohalogenethers

A process for preparing (per)fluorohalogenethers containing the —SO2F group, having general formula (I): FSO2—R—CF2OCAF—CA′F2??(I) wherein: A and A′, equal to or different from each other, are Cl or Br; R has the following meanings: a (per)fluorinated, preferably perfluorinated, substituent, optionally containing one or more oxygen atoms; by reaction of carbonyl compounds having formula (II): FSO2—R—COF??(II) wherein R is as above; in liquid phase with elemental fluorine and with olefinic compounds having formula (III): CAF═CA′F??(III) wherein A and A′ are as above, operating at temperatures from ?120° C. to ?20° C., optionally in the presence of a solvent inert under the reaction conditions.

Process for preparing (per)fluorohalogenethers

A process for preparing (per)fluorohalogenethers containing the -SO2F group, having general formula (I):FSO2-R-CF2OCAF-CA' F2 wherein:A and A', equal to or different from each other, are Cl or Br;R has the following meanings: a (per)fluorinated, preferably perfluorinated, substituent, optionally containing one or more oxygen atoms; by reaction of carbonyl compounds having formula (II):FSO2-R-COF wherein R is as above; in liquid phase with elemental fluorine and with olefinic compounds having formula (III):CAF=CA'F wherein A and A'are as above, operating at temperatures from -120°C to -20°C, optionally in the presence of a solvent inert under the reaction conditions.

Process for preparing fluorohalogenethers

A process for preparing (per) fluorohalogenethers having general formula (I):(R)nC(F)mOCAF-CA'F2 wherein:A and A', equal to or different the one from the other, are Cl or Br or one is selected from A and A' and hydrogen and the other is halogen selected from Cl, Br; R = F, or a fluorinated, preferably perfluorinated, substituent, selected from the following groups: linear or branched C1-C20 alkyl more preferably C1-C10; C3-C7 cycloalkyl; aromatic, C6-C10 arylalkyl, alkylaryl; C5-C10 heterocyclic or alkylheterocyclic; when R is fluorinated or perfluorinated alkyl, cycloalkyl, arylalkyl, alkylaryl, it can optionally contain in the chain one or more oxygen atoms;when R is fluorinated it can optionally contain one or more H atoms and/or one or more halogen atoms different from F:n is an integer and is 1 or 2; m = 3-n; by reaction of carbonyl compounds having formula (II):(R)pC(F)q(O) wherein:p is an integer and is 1 or 2; q is an integer and is zero or 1, R is as above; in liquid phase with elemental fluorine and with olefinic compounds having formula (III):CAF=CA'F wherein A and A' are as above, at temperatures in the range from -120°C to -20°C.

Materials and methods for the conversion of hydrofluorocarbons

Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245, HFC-125, HFC-134, HFC-143, HFC-152, HFC-32, HFC-23 and their respective isomers. Processes are provided for converting hydrofluorocarbons such as these to fluoromonomer precursors such as CFC-217, CFC-216, CFC-215, CFC-115, CFC-114, CFC-113, CFC-112, HCFC-22, CFC-12, CFC-13 and their respective isomers. Materials, methods and schemes are provided for the conversion of these fluoromonomer precursors to fluoromonomers such as HFP, PFP, TFP, TFE, and VDF.