| |  |  | 2,3-DICHLOROHEXAFLUORO-2-BUTENE Basic information | 
 | Product Name: | 2,3-DICHLOROHEXAFLUORO-2-BUTENE |  | Synonyms: | 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-buten;2,3-Dichloro-1,1,1,4,4,4-hexafluorobutene-2;2,3-dichlorohexafluoro-2-buten;2,3-dichlorohexafluoro-2-butene,mixtureofcisandtrans;2-Butene, 2,3-dichloro-1,1,1,4,4,4-hexafluoro-;2-Butene, 2,3-dichlorohexafluoro-;2-Butene,2,3-dichloro-1,1,1,4,4,4-hexafluoro-;cfc1316 |  | CAS: | 303-04-8 |  | MF: | C4Cl2F6 |  | MW: | 232.94 |  | EINECS: | 206-133-2 |  | Product Categories: | Alkenyl;Halogenated  Hydrocarbons;Organic  Building  Blocks |  | Mol File: | 303-04-8.mol |  |  | 
|  |  | 2,3-DICHLOROHEXAFLUORO-2-BUTENE Chemical Properties | 
 | Melting point | -67 °C |  | Boiling point | 66-68 °C(lit.) |  | density | 1.605 g/mL at 25 °C(lit.) |  | vapor density | 8 (vs air) |  | vapor pressure | 4.42 psi ( 20 °C) |  | refractive index | n20/D 1.3458(lit.) |  | CAS DataBase Reference | 303-04-8(CAS DataBase Reference) |  | NIST Chemistry Reference | trans-2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene(303-04-8) |  | EPA Substance Registry System | 2-Butene, 2,3-dichloro-1,1,1,4,4,4-hexafluoro- (303-04-8) | 
| Hazard Codes | T+,Xi,T,C |  | Risk Statements | 26-34 |  | Safety Statements | 26-28-36/37/39-45 |  | RIDADR | UN 3389 6.1/PG 1 |  | WGK Germany | 3 |  | RTECS | EM4910000 |  | Hazard Note | Irritant |  | HazardClass | 8 |  | PackingGroup | III |  | Toxicity | LC50 inhalation in dog: 182ppm/4H | 
|  |  | 2,3-DICHLOROHEXAFLUORO-2-BUTENE Usage And Synthesis | 
 | Chemical Properties | clear colorless liquid |  | General Description | The pure cis- and trans-isomers of 2,3-dichlorohexafluoro-2-butene were separated when 2,3-dichlorohexafluoro-2-butene (mixture of cis and trans) reacted with dry diglyme and sodium borohydride and was hydolyzed. The isomers were purified by preparative vapor phase chromatography technique. | 
|  |  | 2,3-DICHLOROHEXAFLUORO-2-BUTENE Preparation Products And Raw materials | 
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