471-43-2

Basic information

• Product Name: 1,1-DICHLORO-2,2-DIFLUOROETHANE
• Synonyms: 1,1-DICHLORO-2,2-DIFLUOROETHANE;HCFC-132A;1,1-difluoro-2,2-dichloroethane;Ethane, 1,1-dichloro-2,2-difluoro-;ethane,1,1-dichloro-2,2-difluoro-;1,1-Dichloro-2,2-difluoroethane(HCFC-132a)97%;2,2-Difluoro-1,1-dichloroethane;Freon-132a
• CAS NO: 471-43-2
• Molecular Formula: C₂H₂Cl₂F₂
• Molecular Weight: 134.94
• Product Categories: HCFC;refrigerants
• Mol File: 471-43-2.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 60°C
• Flash Point: °C
• Appearance: /
• Density: 1,495 g/cm3
• Vapor Pressure: 202mmHg at 25°C
• Refractive Index: 1.3614 (estimate)
• CAS DataBase Reference: 1,1-DICHLORO-2,2-DIFLUOROETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-DICHLORO-2,2-DIFLUOROETHANE(471-43-2)
• EPA Substance Registry System: 1,1-DICHLORO-2,2-DIFLUOROETHANE(471-43-2)

Safety Data

• Hazard Codes: T,Xi
• Statements: 59
• Safety Statements: 23-36/37/39
• RIDADR: 3082
• HazardClass: IRRITANT, OZONE DEPLETER
• Hazardous Substances Data: 471-43-2(Hazardous Substances Data)

Usage

General Description

1,1-Dichloro-2,2-difluoroethane is a colorless and odorless chemical compound with the formula C2H2Cl2F2. It is commonly used as a refrigerant and as a propellant in aerosol sprays. This chemical is non-flammable, non-corrosive, and has low levels of toxicity, making it a relatively safe option for various industrial and commercial applications. However, it is also a potent greenhouse gas and has been identified as a contributor to ozone depletion, leading to its restriction and eventual phaseout in many countries. Despite its efficient cooling properties, the environmental impact of 1,1-dichloro-2,2-difluoroethane has led to the development of more environmentally friendly alternatives.

InChI:InChI=1/C2H2Cl2F2/c3-1(4)2(5)6/h1-2H

Upstream product

• 338-65-8 1-chloro-2,2-difluoroethane 
• 79-34-5 1,1,2,2-tetrachloroethane 
• 75-37-6 1,1-difluoroethane 
• 7782-50-5 chlorine 
• 116-14-3 polytetrafluoroethylene 
• 75-10-5 Difluoromethane 
• 7647-01-0 hydrogenchloride 
• 359-28-4 1,1,2-trichloro-2-fluoroethane 
• 7647-18-9 antimonypentachloride 
• 683-68-1 1,2-dibromo-1,2-dichloro-ethane 
• 7783-56-4 antimony(III) fluoride 
• 7664-39-3 hydrogen fluoride 
• 630-20-6 1,1,1,2-tetrachoroethane 
• 359-35-3 1,1,2,2-tetrafluoroethane 

Downstream Products

• 430-02-4 ethyl-(2-chloro-1,1-difluoro-ethyl)-ether 
• 359-02-4 1,1-dichloro-2-fluoro-ethene 
• 31508-28-8 1,1-dichloro-2-ethoxy-ethene 
• 345-63-1 (2,2-dichloro-1-fluoro-ethyl)-benzene 
• 76-11-9 1,1-difluorotetrachloroethane 
• 67-72-1 hexachloroethane 
• 75-88-7 1,1,1-trifluoro-2-chloroethane 
• 460-16-2 1-chloro-2-fluoroethylene 
• 354-21-2 1,1,2-trichloro-2,2-difluoroethane 
• 354-12-1 1,1,1-trichloro-2,2-difluoroethane 
• 359-10-4 1-Chloro-2,2-difluoroethene 
• 92-52-4 biphenyl 
• 71-43-2 benzene 

Relevant articles and documents

Catalytical production processes for making hydrohalopropanes and hydrofluorobutanes

A process is disclosed for making hydrohalopropanes or hydrofluorobutanes. The process involves reacting a hydrofluoromethane with a fluoroolefin in the presence of an aluminum catalyst to produce a hydrohalopropane or a hydrofluorobutane. The hydrofluoromethane is CH2F2 or CH3F. The fluoroolefin is CF2═CF2, ClFC═CF2, or CF3CF═CF2.

Catalytic synthesis of 1,1,1,2-tetrafluoroethane from 1,1,1,2-tetrachloroethane - A mechanistic consideration

1,1,1,2-Tetrachloroethane and its fluorinated derivatives as well as trichloroethene are fluorinated by hydrogen fluoride in the presence of a pre-conditioned chromia catalyst. The reaction pathways are derived under different conditions. Fluorinated haloalkanes are formed both by dehydrochlorination/hydrofruorination mechanism as well as chlorine/ fluorine exchange mechanism. Thus, beside fluorinated alkanes considerable amounts of haloolefins occur in the product mixture. A survey is given on the reaction pathway showing dependence on the reaction conditions. It is discussed with respect to calculated thermodynamic data. Kinetic and mechanistic investigations of the isomerisation reactions of 1.1.2.2-tetrafluoroethane on a CFC-conditioned chromia catalyst are also presented. The desired 1.1.1.2- tetrafluoroethane can be obtained from its symmetric isomer in the presence of a chromia catalyst conditioned exclusively with chlorine-free fluorocarbons. Mechanistic information is obtained by employing DCl which behaves similar to HF during the consecutive isomerisation reaction of 1.1.2.2- tetrafluoroethane. Thus, it is most probable that dehydrohalogenation/hydrohalogenation processes (elimination/addition mechanism) are mainly responsible for the formation of the haloolefins and halocarbons observed on chromia.

REACTIONS OF HALOGEN FLUORIDES. VII. FLUORINATION OF UNSATURATED COMPOUNDS WITH BROMINE TRIFLUORIDE AND AN EQUIMOLAR MIXTURE OF BROMINE TRIFLUORIDE WITH MOLECULAR BROMINE

The reactions of bromine trifluoride and an equimolar mixture of bromine trifluoride and bromine with halogen-substituted alkenes and methyl α-substituted acrylates were investigated.With sufficient dilution of the substrate by Freon 113 (20-25:1) it is possible to obtain the bromofluoro and difluoro adducts with good yiels.The best results (overall yields of fluorination products 80-83percent) were obtained with alkenes containing a halogen at the multiple bond; in the case of more reactive substrates the reaction becomes nonpreparative.The bromofluorination of E- and Z-1,2-dichloroethylenes and E- and Z-1,3-dichloropropenes with pure bromine trifluoride is antistereospecific.The bromofluorination of E- and Z-1,2-dichloroethylenes by the BrF3-Br2 system gives a mixture of diastereomeric bromofluoro adducts as a result of isomerization of the initial olefins in the presence of the bromine.The formation of the difluorides of the halogenated olefins is nonstereospecific and is accompanied by migration of the halogens.