2268-44-2

Basic information

• Product Name: 1 1 2 2-TETRACHLORO-1 3 3 3-TETRAFLUOROPROPANE
• Synonyms: 1,1,2,2-Tetrachloro-1,3,3,3-tetrafluoropropane;1,1,2,2-Tetrachlorotetrafluoropropane; CFC 214ab
• CAS NO: 2268-44-2
• Molecular Formula: C₃Cl₄F₄
• Molecular Weight: 253.84
• Mol File: 2268-44-2.mol
• Article Data: 9

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1 1 2 2-TETRACHLORO-1 3 3 3-TETRAFLUOROPROPANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1 1 2 2-TETRACHLORO-1 3 3 3-TETRAFLUOROPROPANE(2268-44-2)
• EPA Substance Registry System: 1 1 2 2-TETRACHLORO-1 3 3 3-TETRAFLUOROPROPANE(2268-44-2)

Safety Data

• Hazardous Substances Data: 2268-44-2(Hazardous Substances Data)

Usage

General Description

1 1 2 2-Tetrachloro-1 3 3 3-tetrafluoropropane, also known as CFC-114, is a chlorofluorocarbon compound used as a refrigerant and as a solvent in various industrial applications. It is a dense, colorless, and non-flammable gas that is not easily reactive with other chemicals. However, it is a potent greenhouse gas and ozone-depleting substance, contributing to the destruction of the ozone layer. Due to its environmental impact, the use of CFC-114 has been regulated under the Montreal Protocol, and efforts are being made to phase out its production and use in order to mitigate its adverse effects on the environment.

Upstream product

• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 
• 74-99-7 prop-1-yne 
• 463-49-0 1,2-propanediene 
• 74-98-6 propane 
• 187737-37-7 propene 
• 1652-89-7 1,1,1,2,2-pentachloro-3,3,3-trifluoropropane 
• 7783-56-4 antimony(III) fluoride 
• 7782-50-5 chlorine 
• 75-69-4 trichlorofluoromethane 
• 79-38-9 Chlorotrifluoroethylene 

Downstream Products

• 76-19-7 freon-218 
• 76-18-6 2-Chloro-F-propane 

Relevant articles and documents

Copper-Substituted Chromium Oxide Compositions, Their Preparation, and Their Use as Catalysts and Catalyst Precursors

A crystalline alpha-chromium oxide where from about 0.05 atom % to about 5 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper (Cu+2) atoms is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline copper-substituted alpha-chromium oxide; and methods for preparing a composition comprising the crystalline copper-substituted alpha-chromium oxide. One method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble copper salt and a soluble trivalent chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a copper concentration of from about 0.05 atom % to about 5 atom % of the total concentration of copper and chromium in the solution; and after at least three moles of ammonium per mole of chromium in the solution has been added to the solution, (b) collecting the co-precipitated solid formed in (a); (c) drying the collected solid; and (d) calcining the dried solid. Another method involves (a) preparing an aqueous solution of a soluble copper salt and a soluble trivalent chromium salt that contains a copper concentration of from about 0.05 atom % to about 5 atom % of the total concentration of copper and chromium in the solution, (b) evaporating the solution to dryness, and (c) calcining the dried solid. Also disclosed is a chromium-containing catalyst composition comprising a chromium-containing component prepared by treating the crystalline copper-substituted alpha-chromium oxide with a fluorinating agent; and a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst. The process involves using as the catalyst a composition comprising the crystalline copper-substituted alpha-chromium oxide and/or the treated copper-substituted alpha-chromium oxide.

Preparation of composition containing chromium, oxygen, and either silver or palladium, and their use as catalysts and catalyst precursors

A method for preparing a catalyst composition suitable for increasing the fluorine content in a hydrocarbon or a halogenated hydrocarbon is disclosed. The method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble trivalent chromium salt and a soluble salt of a modifier metal selected from silver and palladium, that contains at least three moles of nitrate (i.e., NO3?) per mole of chromium (i.e., Cr+3) in the solution and has a modifier metal concentration of from about 0.05 atom % to about 10 atom % of the total concentration of modifier metal and chromium in the solution to form an aqueous mixture containing co-precipitated solid and dissolved ammonium nitrate; and after at least three moles of ammonium hydroxide per mole of chromium in the solution has been added to the solution, (b) drying said aqueous mixture formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume (e.g., air). Also disclosed is a catalyst composition comprising alpha-chromium oxide and a modifier metal selected from silver and palladium prepared by the above method. Also disclosed is a process for increasing the fluorine content in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst; and processes using a catalyst composition comprising chromium, oxygen and a modifier metal selected from siver and palladium as essential constituent elements (e.g., a catalyst composition prepared by the above process). An azeotropic composition involving CF3CCl═CF2 and HF is also disclosed.

Thermal chlorofluorination of propyne and propadiene

Propyne and propadiene have been found to readily undergo vapor phase catalyzed chlorofluorination. At temperatures to 285 °C, the reaction forms mixtures of C3F4Cl4 isomers that differ in composition from mixtures obtained from either propane or propene.