775-51-9

Basic information

• Product Name: 1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene
• Synonyms: 1,2,3,3,4,5,6,6-Octafluorocyclohexa-1,4-diene; 1,4-cyclohexadiene, 1,2,3,3,4,5,6,6-octafluoro-
• CAS NO: 775-51-9
• Molecular Formula: C₆F₈
• Molecular Weight: 224.0514
• Mol File: 775-51-9.mol
• Article Data: 16

Chemical Properties

• Boiling Point: 91.7°C at 760 mmHg
• Flash Point: 8.9°C
• Density: 1.62g/cm³
• Vapor Pressure: 60.3mmHg at 25°C
• Refractive Index: 1.323
• CAS DataBase Reference: 1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene(775-51-9)
• EPA Substance Registry System: 1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene(775-51-9)

Safety Data

• Hazardous Substances Data: 775-51-9(Hazardous Substances Data)

Usage

General Description

1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene is a chemical compound that belongs to the family of fluorocarbons. It is a colorless and odorless liquid with a molecular formula of C6H6F8. 1,2,3,3,4,5,6,6-octafluorocyclohexa-1,4-diene is mainly used as a refrigerant and as a solvent in various industrial processes. It has a low boiling point and is chemically inert, making it suitable for use in a wide range of applications. However, it is important to handle this compound with caution as it is a potent greenhouse gas and has been associated with environmental and health concerns.

Upstream product

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Downstream Products

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• 5492-89-7 1-pentafluorophenyl nonafluoro cyclohexene 
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• 65007-56-9 Perfluor-1,3-diphenyl-1,3-cyclohexadien 
• 65007-57-0 Perfluor-1,5-diphenyl-1,4-cyclohexadien 
• 59831-92-4 perfluoro-1,3,5-triphenylbenzene 
• 355-75-9 decafluorocyclohex-1-ene 
• 61807-07-6 1-chloroheptafluoro-2,5-cyclohexadiene 
• 773-53-5 2,3,3,4,5,6,6-heptafluorocyclohexa-1,4-diene 
• 31673-17-3 1,2,3,4,4,5,6-heptafluoro-1-methyl-2,5-cyclohexadiene 

Relevant articles and documents

Study on the pyrolysis characteristics of a series of fluorinated cyclopentenes and implication of their environmental influence

3,3,4,4,5,5-hexafluorocyclopentene (6FE), 1,3,3,4,4,5,5-heptafluorocyclopentene (7FE) and octafluorocyclopentene (8FE) are considered as new generation of potential chlorofluorocarbons substitutes. To investigate the thermostabilities, tubular furnace experiments were designed over temperature range of 500-850℃. The results show that 6FE, 7FE and 8FE are all stable below 650 ℃, thus have good stabilities in common storage and practical use condition. Furthermore, considering the short atmospheric lifetimes (several months), low global warming potentials (GWPs, less than 119) and zero ozone depletion potentials (ODPs), the compounds seem no big influences on the climate change.

Explored routes to unknown polyfluoroorganyliodine hexafluorides, R FIF6

Two routes to RFIF6 compounds were investigated: (a) the substitution of F by RF in IF7 and (b) the fluorine addition to iodine in RFIF4 precursors. For route (a) the reagents C6F5SiMe3, C6F 5SiF3, [NMe4][C6F 5SiF4], C6F5BF2, and 1,4-C6F4(BF2)2 were tested. C 6F5IF4 and CF3CH2IF 4 were used in route (b) and treated with the fluoro-oxidizers IF7, [O2][SbF6]/KF, and K2[NiF 6]/KF. The observed sidestep reactions in case of routes (a) and (b) are discussed. Interaction of C6F5SiX3 (X = Me, F), C6F5BF2, 1,4-C6F 4(BF2)2 with IF7 gave exclusively the corresponding ring fluorination products, perfluorinated cyclohexadiene and cyclohexene derivatives, whereas [NMe4][C6F 5SiF4] and IF7 formed mixtures of C 6FnIF4 and C6FnH compounds (n = 7 and 9). CF3CH2IF4 was not reactive towards the fluoro-oxidizer IF7, whereas C6F 5IF4 formed C6FnIF4 compounds (n = 7 and 9). C6F5IF4 and CF 3CH2IF4 were inert towards [O 2][SbF6] in anhydrous HF. CF3CH 2IF4 underwent C-H fluorination and C-I bond cleavage when treated with K2[NiF6]/KF in HF. The fluorine addition property of IF7 was independently demonstrated in case of perfluorohexenes. C4F9CFCF2 and IF7 underwent oxidative fluorine addition at -30 °C, and the isomers (CF 3)2CFCFCFCF3 (cis and trans) formed very slowly perfluoroisohexanes even at 25 °C. The compatibility of IF7 and selected organic solvents was investigated. The polyfluoroalkanes CF 3CH2CHF2 (PFP), CF3CH 2CF2CH3 (PFB), and C4F9Br are inert towards iodine heptafluoride at 25 °C while CF3CH 2Br was slowly converted to CF3CH2F. Especially PFP and PFB are new suitable organic solvents for IF7.

REACTION OF 4-CHLOROHEXAFLUORO-2,5-CYCLOHEXADIENYL FLUOROSULFATE AND HEXAFLUORO-2,5-CYCLOHEXADIENYLENE 1,4-BIS(FLUOROSULFATE) WITH NUCLEOPHILIC REAGENTS

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