338-65-8

Basic information

• Product Name: 2-CHLORO-1,1-DIFLUOROETHANE
• Synonyms: 1-chloro-2,2-difluoroethane;2-Chlor-1,1-difluorethan;Ethane,2-chloro-1,1-difluoro;ethane,2-chloro-1,1-difluoro-;2-CHLORO-1,1-DIFLUOROETHANE;2-CDE;2-CHLORO-1,1-DIFLUOROETHANE, 97% MIN.;1,1-Difluoro-2-chloroethane
• CAS NO: 338-65-8
• Molecular Formula: C₂H₃ClF₂
• Molecular Weight: 100.5
• Product Categories: HCFC
• Mol File: 338-65-8.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 35,1°C
• Flash Point: 1.3528
• Appearance: /
• Density: 1.312
• Vapor Pressure: 53-170kPa at 20-50℃
• Refractive Index: 1.3528
• CAS DataBase Reference: 2-CHLORO-1,1-DIFLUOROETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-CHLORO-1,1-DIFLUOROETHANE(338-65-8)
• EPA Substance Registry System: 2-CHLORO-1,1-DIFLUOROETHANE(338-65-8)

Safety Data

• Hazard Codes: F
• Statements: 10
• Safety Statements: 16
• RIDADR: 1993
• Hazardous Substances Data: 338-65-8(Hazardous Substances Data)

Usage

General Description

2-Chloro-1,1-difluoroethane is a chemical compound with the formula C2H3ClF2. It is a colorless, odorless gas at room temperature and is commonly used as a refrigerant and as a propellant in aerosol products. It is also used as a solvent in various industrial processes. 2-Chloro-1,1-difluoroethane is known for its low toxicity and is not known to have any significant adverse health effects in humans at typical exposure levels. However, it is a potent greenhouse gas and is regulated under the Kyoto Protocol as a contributor to global warming. Its production and use are therefore tightly controlled to minimize its environmental impact.

Upstream product

• 75-00-3 chloroethane 
• 107-20-0 2-chloroethanal 
• 540-59-0 1,2-Dichloroethylene 
• 359-10-4 1-Chloro-2,2-difluoroethene 
• 75-38-7 Vinylidene fluoride 
• 75-02-5 1-fluoroethylene 
• 22082-78-6 trifluoromethyl hypochlorite 
• 79-00-5 1,1,2-trichloroethane 
• 359-13-7 difluoroethanol 
• 79-01-6 Trichloroethylene 
• 7664-39-3 hydrogen fluoride 
• 7783-56-4 antimony(III) fluoride 
• 7647-18-9 antimonypentachloride 

Downstream Products

• 51076-95-0 2-chloro-1,1,1-triethoxyethane 
• 430-67-1 2,2-difluorethylamine 
• 1649-08-7 1,2-dichloro-1,1-difluoroethane 
• 471-43-2 1,1-dichloro-2,2-difluoroethane 
• 75-38-7 Vinylidene fluoride 
• 1691-13-0 1,2-difluoroethene 
• 460-16-2 1-chloro-2-fluoroethylene 
• 359-13-7 difluoroethanol 
• 430-66-0 1,1,2-Trifluoroethan 
• 1550-44-3 2,2-difluoroethyl acetate 
• 381-73-7 Difluoroacetic acid 
• 1179837-45-6 2,2-difluoro-N-(4-methylbenzyl)ethanamine 
• 1184645-98-4 2,2-difluoro-N-(4-chlorobenzyl)ethanamine 
• 1184429-97-7 2,2-difluoro-N-(4-methoxybenzyl)ethanamine 

Relevant articles and documents

Radical addition of iodine monochloride to vinylidene fluoride

The radical addition of iodine monochloride to 1,1-difluoroethylene or vinylidene fluoride (VDF) leading to a ClCF2CH2I (I)/ClCH2CF2I (II) mixture is described. Four different ways of initiation (thermal, photochemical, presence of radical initiators or redox catalysts) were used and all of them led to a high amount (≥98%) of isomer (I). The percentages of (I) and (II) isomers were determined by 19F NMR and they were also deduced from those of ClCF2CH3 and ClCH2CF2H obtained by selective reduction of the iodine atom of the product mixture, by tributylstannane. The reactivity of ICl to VDF and the high proportion of isomer (I) were interpreted by means of a thermodynamical approach from the enthalpy of formation of (I) and (II), respectively, determined by semi-empirical computations. In addition, heats of formation of both isomers and interactions between the SOMO of radicals and the HOMO of the fluoroolefin show that the mechanism of such a reaction occurs via the addition of I· to the less fluorinated side of VDF.

-

-

COMPOSITIONS OF CHROMIUM OXYFLUORIDE OR FLUORIDE CATALYSTS, THEIR PREPARATION AND THEIR USE IN GAS-PHASE PROCESSES

The present invention relates to a process for modifying the fluorine distribution in a hydrocarbon compound in the presence of a catalyst, characterized by the use, as catalyst, of a solid composition comprising at least one component containing chromium oxyfluoride or fluoride of empirical formula CrxM(1-x)OrFs, where 2r+s is greater than or equal to 2.9 and less than 6, M is a metal chosen from columns 2 to 12 of the Periodic Table of the Elements, x has a value from 0.9 to 1, s is greater than 0 and less than or equal to 6 and r is greater than or equal to 0 and less than 3, the said solid composition having a crystallinity of less than 20% by weight. The present invention also relates to the solid composition per se.

CATALYTIC GAS PHASE FLUORINATION OF 1,1,2-TRICHLOROETHANE AND/OR 1,2-DICHLOROETHENE TO PRODUCE 1-CHLORO-2,2-DIFLUOROETHANE

The invention is directed to a catalyst for the gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene with HF to give 1-chloro-2,2-difluoroethane which catalyst is prepared by co-depositing FeCl3 and MgCl2 on chromia-alumina, or co-depositing Cr(NO3)3 and Ni(NO3)2 on active carbon, or by doping alumina with ZnCl2, and to a process for the preparation of 1-chloro-2,2-difluoroethane comprising a catalytic gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene wherein one of the catalysts according to claim 2 or 3 is used.

PROCESS FOR PRODUCTION OF 1,1,1,2-TETRAFLUOROETHANE AND/OR PENTAFLUOROETHANE AND APPLICATIONS OF THE SAME

A process for producing high purity 1,1,1,2-tetrafluoroethane and/or pentafluoroethane by the step of purifying a crude product obtained by reacting trichloroethylene and/or tetrachloroethylene with hydrogen fluoride comprised of a main product including 1,1,1,2-tetrafluoroethane and/or pentafluoroethane, hydrogen fluoride as an azeotropic component with the main product, and impurity ingredients including at least an unsaturated compound, wherein said purifying step includes a step of bringing a mixture obtained by newly adding hydrogen fluoride into said crude product into contact with a fluorination catalyst in the vapor phase to reducing the content of the unsaturated compound contained in said crude product and a distillation step.