354-96-1

Basic information

• Product Name: PERFLUORO(2,3-DIMETHYLBUTANE)
• Synonyms: PERFLUORO(2,3-DIMETHYLBUTANE);2,3-bis(trifluoromethyl)-perfluorobutane;butane,octafluoro-2,3-bis(trifluoromethyl)-;1,1,1,2,3,4,4,4-Octafluoro-2,3-dimethylbutane;2,3-Bis(trifluoromethyl)octafluorobutane;2,3-Bis(trifluoromethyl)-1,1,1,2,3,4,4,4-octafluorobutane;Perfluoro(2,3-dimethylbutane)80%
• CAS NO: 354-96-1
• Molecular Formula: C₆F₁₄
• Molecular Weight: 338.04
• Mol File: 354-96-1.mol
• Article Data: 8

Chemical Properties

• Melting Point: -15°C
• Boiling Point: 55.56°C (estimate)
• Flash Point: 2.4°C
• Appearance: /
• Density: 1.6760 (rough estimate)
• Vapor Pressure: 207mmHg at 25°C
• Refractive Index: 1.2589 (estimate)
• CAS DataBase Reference: PERFLUORO(2,3-DIMETHYLBUTANE)(CAS DataBase Reference)
• NIST Chemistry Reference: PERFLUORO(2,3-DIMETHYLBUTANE)(354-96-1)
• EPA Substance Registry System: PERFLUORO(2,3-DIMETHYLBUTANE)(354-96-1)

Safety Data

• Hazardous Substances Data: 354-96-1(Hazardous Substances Data)

Usage

General Description

PERFLUORO(2,3-DIMETHYLBUTANE) is a synthetic chemical compound that belongs to the perfluoroalkanes family. It is a colorless, odorless and non-flammable liquid that is used as a solvent and as a chemical intermediate for various industrial processes. The main industrial application of PERFLUORO(2,3-DIMETHYLBUTANE) is in the production of fluorinated polymers, such as Teflon and other non-stick coatings, due to its high chemical stability and resistance to heat and chemicals. It is also used as a refrigerant and in the manufacturing of electronic components. However, there are concerns about the environmental impact of PERFLUORO(2,3-DIMETHYLBUTANE) as it is a persistent organic pollutant that does not readily degrade in the environment and can bioaccumulate in living organisms. Its production and use are subject to regulations and restrictions in many countries to minimize its release and environmental impact.

InChI:InChI=1/C6F14/c7-1(3(9,10)11,4(12,13)14)2(8,5(15,16)17)6(18,19)20

Upstream product

• 75-83-2 2,2-Dimethylbutane 
• 79-29-8 2,3-dimethylbutane 
• 677-69-0 perfluoroisopropyl iodide 
• 506-77-4 cyanogen chloride 
• 354-61-0 1,2-dichloro-1,2,2-trifluoro-1-iodoethane 
• 354-89-2 (pentafluoro ethyl) trifluoro silane 
• 58734-88-6 bis(trifluoromethyl)hexafluoroisopropylphosphine 
• 122432-73-9 perfluoro-3-ethyl-2,4-dimethylpent-1-ene 
• 122432-74-0 perfluoro-2-isopropyl-3,3-dimethylbut-1-ene 
• 120615-52-3 perfluoro-2,3,3,4-tetramethylpentane 
• 127629-28-1 1,1,1,2,3,3,3-Heptafluoro-2-(1,2,2,2-tetrafluoro-1-iodo-ethoxy)-propane 
• 116-15-4 perfluoropropylene 
• 1423-18-3 bis(perfluoroisopropyl)sulfurdifluoride 

Relevant articles and documents

Reaction of i-Heptafluoropropyl Radicals with Cyanogen Chloride

The gas-phase reaction of i-C3F7 radicals with cyanogen chloride has been studied between 70 and 330 deg C, using heptafluoro-2-iodopropane as the free-radical source.The main product, 2-chloroheptafluoropropane, is formed via chlorine-atom abstraction by i-C3F7: i-C3F7 + ClCN -> C3F7Cl + CN (6) for which log106/k1/2/c)/cm3/2mol-1/2s-1/2> = 6.27-14.41/2.303 RT was obtained.At lower temperatures the Arrhenius plot shows curvature.This was interpreted as the occurence of another reaction producing C3F7Cl, wich could be i-C3F7 + ClCN C3F7ClCN (9.-9) C3F7ClCN -> C3F7Cl + CN (10).The results are compared with those for the reaction of other perfluoroalkyl radicals with ClCN.

LASER-INDUCED DECOMPOSITION OF HEPTAFLUORO-2-IODOPROPANE

CO2 laser-induced homogeneous decomposition of i-C3F7I yields a variety of perfluorinated compounds, which are suggested to be formed by recombinations of carbenes and radicals generated upon the cleavage of the C-1 bond and the fragmentation of the i-C3F7 radical.The decomposition of i-C3F7I in the presence of ethene leads mainly to the formation of (i-C3F7CH2)2 and i-C3F7(CH2)2I.

Skeletal Rearrangements during the Fluorination of C6-Hydrocarbons over Cobalt(III) Trifluoride

Perfluorination of hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, methylcyclopentane and cyclohexane over cobalt(III) trifluoride gave, in each case except perhaps cyclohexane, a mixture of linear, branched and cyclic C6-fluorocarbons: the degree of skeletal rearrangement (excluding cyclohexane) varied from ca. 7percent (methylcyclopentane) to 96percent (2,2-dimethylbutane).A carbocation mechanism, which does not proceed to equilibrium, is suggested.