431-53-8

Basic information

• Product Name: 1,2-DICHLOROTETRAFLUOROPROPENE
• Synonyms: 1,2-DICHLOROTETRAFLUOROPROPENE;(1E)-1,2-Dichloro-1,3,3,3-tetrafluoro-1-propene;1-Propene, 1,2-dichloro-1,3,3,3-tetrafluoro-;Propene, 1,2-dichlorotetrafluoro-;1,2-Dichlorotetrafluoropropene97%;1,2-Dichlorotetrafluoro-1-propene
• CAS NO: 431-53-8
• Molecular Formula: C₃Cl₂F₄
• Molecular Weight: 182.93
• Mol File: 431-53-8.mol
• Article Data: 3

Chemical Properties

• Melting Point: -137°C
• Boiling Point: 47°C
• Appearance: /
• Density: 1,547 g/cm3
• Vapor Pressure: 338mmHg at 25°C
• Refractive Index: 1.351
• CAS DataBase Reference: 1,2-DICHLOROTETRAFLUOROPROPENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DICHLOROTETRAFLUOROPROPENE(431-53-8)
• EPA Substance Registry System: 1,2-DICHLOROTETRAFLUOROPROPENE(431-53-8)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• HazardClass: IRRITANT
• Hazardous Substances Data: 431-53-8(Hazardous Substances Data)

Usage

General Description

1,2-Dichlorotetrafluoropropene is a colorless, flammable gas with a faint, sweet odor. It is a chemical compound with the formula C3Cl2F4 and is commonly used in the production of refrigerants and propellants. This chemical is also used as an intermediate in the manufacturing process of various fluorinated compounds and polymers. 1,2-Dichlorotetrafluoropropene is considered to be a hazardous substance and should be handled and stored with proper care and safety measures. Exposure to this compound can cause irritation to the respiratory system and skin, and it should be used in a well-ventilated area with appropriate protective equipment.

InChI:InChI=1/C3Cl2F4/c4-1(2(5)6)3(7,8)9/b2-1-

Upstream product

• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 
• 7664-39-3 hydrogen fluoride 
• 7637-07-2 boron trifluoride 

Downstream Products

• 661-97-2 1,2-dichlorohexafluoropropane 
• 306-88-7 1,2,3,4-tetrachloro-1,1,4,4-tetrafluoro-2,3-bis-trifluoromethyl-butane 
• 116-15-4 perfluoropropylene 
• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 

Relevant articles and documents

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.

PROCESSES FOR THE PREPARATION OF 2-CHLORO-1,1,1,2,3,3,3-HEPTAFLUOROPROPANE, HEXAFLUOROPROPENE AND 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE

A process for the preparation of 2-chloro-1,1,1,3,3,3-heptafluoropropane is disclosed which involves (a) contacting a mixture comprising hydrogen fluoride, chlorine, and at least one starting material selected from the group consisting of halopropenes of the formula CX3CCl=CX2 and halopropanes of the formula the CX3CClYCX3, wherein each X is independently F or Cl, and Y is H, Cl or F (provided that the number of X and Y which are F totals no more than six) with a chlorofluorination catalyst in a reaction zone to produce a product mixture comprising CF3CClFCF3, HCl, HF, and underfluorinated halogenated hydrocarbon intermediates. The process is characterized by said chlorofluorination catalyst comprising at least one chromium-containing component selected from (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by nickel, trivalent cobalt or both nickel and trivalent cobalt, provided that no more than 2 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by nickel and that the total amount of chromium atoms in the alpha-chromium oxide lattice that are replaced by nickel and trivalent cobalt is no more than 6 atom % , and (ii) a fluorinated crystalline oxide of (i).Also disclosed is a process for the manufacture of a mixture of HFC-227ea and hexafluoropropene by reacting a starting mixture comprising CFC-217ba and hydrogen in the vapor phase at an elevated temperature, optionally in the presence of a hydrogenation catalyst. This process involves preparing the CFC-217ba by the process described above.