661-97-2

Basic information

• Product Name: 1,2-DICHLOROHEXAFLUOROPROPANE
• Synonyms: 1,1,1,2,3,3-Hexafluor-2,3-dichlorpropan;1,1,1,2,3,3-Hexafluoro-2,3-dichloropropane;1,2-Dichlor-1,1,2,3,3,3-hexafluorpropan;1,2-Dichlorhexafluorpropan;1,2-dichloro-1,1,2,3,3,3-hexafluoro-propan;1,2-Dichloroperfluoropropane;1,2-Dichlorperfluorpropan;cfc216
• CAS NO: 661-97-2
• Molecular Formula: C₃Cl₂F₆
• Molecular Weight: 220.93
• EINECS: 211-551-3
• Product Categories: CFC;refrigerants
• Mol File: 661-97-2.mol
• Article Data: 17

Chemical Properties

• Melting Point: -124.9°C
• Boiling Point: 33-34°C
• Appearance: /
• Density: 1,304 g/cm3
• Vapor Pressure: 488mmHg at 25°C
• Refractive Index: 1.3035
• CAS DataBase Reference: 1,2-DICHLOROHEXAFLUOROPROPANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DICHLOROHEXAFLUOROPROPANE(661-97-2)
• EPA Substance Registry System: 1,2-DICHLOROHEXAFLUOROPROPANE(661-97-2)

Safety Data

• Hazard Codes: Xi
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 661-97-2(Hazardous Substances Data)

Usage

General Description

1,2-Dichlorohexafluoropropane is a colourless, non-flammable and chemically stable halocarbon that is widely used as a refrigerant, solvent, and propellant. It is also known by the trade name "R-1216" and has a chemical formula of C3F6Cl2. It is a member of the class of compounds known as chlorofluorocarbons (CFCs), which are notorious for their ozone-depleting properties. Due to concerns about its environmental impact, 1,2-Dichlorohexafluoropropane has been phased out of most uses and is no longer produced in large quantities. However, it is still found in some older refrigeration and air conditioning systems, and its release into the atmosphere is strictly regulated.

InChI:InChI=1/C3Cl2F6/c4-1(6,2(5,7)8)3(9,10)11/t1-/m0/s1

Upstream product

• 3175-64-2 1,1,1,2-tetrachloro-2,3,3,3-tetrafluoropropane 
• 116-15-4 perfluoropropylene 
• 1768-32-7 sulfur bis(trifluoromethyl)amide chloride 
• 1652-80-8 2,2-dichloro-1,1,1,3,3,3-hexafluoro-propane 
• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 
• 677-21-4 1,1,1-trifluoropropylene 
• 74-99-7 prop-1-yne 
• 7783-56-4 antimony(III) fluoride 
• 7782-50-5 chlorine 
• 75747-56-7 trans-1,2-dichloro-3,3-difluoropropene 
• 431-53-8 1,2-dichlorotetrafluoropropene 
• 75-69-4 trichlorofluoromethane 
• 7664-39-3 hydrogen fluoride 
• 13063-43-9 dichloromalononitrile 

Downstream Products

• 116-15-4 perfluoropropylene 
• 431-89-0 1,1,1,2,3,3,3-Heptafluoropropane 
• 677-56-5 1,1,1,2,2,3-hexafluoropropane 
• 431-63-0 1,1,1,2,3,3-hexafluoropropane 
• 690-39-1 1,1,1,3,3,3-hexafluoropropane 
• 431-87-8 2-chloro-1,1,1,3,3,3-hexafluoropropane 
• 421-48-7 1,1,1,2-tetrafluoropropane 
• 359-58-0 1-chloro-1,1,2,3,3,3-hexafluoro-propane 
• 1814-88-6 1,1,1,2,2-pentafluoropropane 
• 51346-64-6 CF₃CClFCHF₂ 
• 55130-03-5 xenon monochloride 

Relevant articles and documents

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Compositions containing chromium, oxygen and gold, their preparation, and their use as catalysts and catalyst precursors

A catalyst composition is disclosed that includes chromium, oxygen, and gold as essential constituent elements. The amount of gold in the composition is from about 0.05 atom % to about 10 atom % based on the total amount of chromium and gold. Also disclosed is a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of the catalyst composition; and methods for preparing said catalyst composition. One preparation method involves; (a) co-precipitating a solid by adding ammonium hydroxide (aqueous ammonia) to an aqueous solution of a soluble gold salt and a soluble chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a gold content of from about 0.05 atom % to about 10 atom % of the total content of gold and chromium in the solution to form an aqueous mixture containing co-precipitated solid; (b) drying the co-precipitated solid formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume. Another preparation method involves (a) impregnating solid chromium oxide with a solution of a soluble gold salt, (b) drying the impregnated chromium oxide prepared in (a); and optionally, (c) calcining the dried solid. A third preparation method involves (a) evaporating an aqueous solution of chromium(VI) oxide and a soluble gold salt to form a solid; (b) drying the solid formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume.

Compositions containing chromium, oxygen, and at least two modifier metals selected the group consisting of gold, silver, and palladium, their preparation, and their use as catalysts and catalyst precursors

A catalyst composition is disclosed that includes chromium, oxygen, and at least two of gold, silver, and palladium as essential constituent elements. The amount of modifier metals (gold, silver, and/or palladium) in the composition is from about 0.05 atom % to about 10 atom % based on the total amount of chromium and modifier metals. Also disclosed is a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of the catalyst composition; and methods for preparing said catalyst composition. One preparation method involves (a) co-precipitating a solid by adding ammonium hydroxide (aqueous ammonia) to an aqueous solution of soluble salts of modifier metals and a soluble chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a modifier metal content of from about 0.05 atom % to about 10 atom % of the total content of modifier metals and chromium in the solution to form an aqueous mixture containing co-precipitated solid; (b) drying the co-precipitated solid formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume. Another preparation method involves (a) impregnating solid chromium oxide with a solution of a soluble modifier metal salts; (b) drying the impregnated chromium oxide prepared in (a); and optionally; (c) calcining the dried solid. Yet another preparation method involves mixing multiple compositions, each comprising chromium, oxygen, and at least one modifier metal.