354-92-7

Basic information

• Product Name: DECAFLUOROISOBUTANE
• Synonyms: DECAFLUOROISOBUTANE;PERFLUOROISOBUTANE;1,1,1,2,3,3,3-Heptafluoro-2-(trifluoromethyl)propane;1,1,1,2,3,3,3-Heptafluoro-2-trifluoromethyl-propane;heptafluoro-2-trifluoromethyl-propane;Propane,1,1,1,2,3,3,3-heptafluoro-2-(trifluoromethyl)-;Perflisobutane;2-(Trifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane
• CAS NO: 354-92-7
• Molecular Formula: C₄F₁₀
• Molecular Weight: 238.03
• EINECS: 206-571-4
• Mol File: 354-92-7.mol
• Article Data: 7

Chemical Properties

• Melting Point: -128.2°C (estimate)
• Boiling Point: -1.75°C (estimate)
• Flash Point: °C
• Appearance: /
• Density: 1.4545 (rough estimate)
• Vapor Pressure: 1690mmHg at 25°C
• Refractive Index: 1.2464 (estimate)
• CAS DataBase Reference: DECAFLUOROISOBUTANE(CAS DataBase Reference)
• NIST Chemistry Reference: DECAFLUOROISOBUTANE(354-92-7)
• EPA Substance Registry System: DECAFLUOROISOBUTANE(354-92-7)

Safety Data

• Hazard Codes: Xi
• Hazardous Substances Data: 354-92-7(Hazardous Substances Data)

Usage

General Description

DECAFLUOROISOBUTANE is a colorless, odorless, and non-flammable chemical compound belonging to the family of fluorocarbons. It is commonly used as a propellant in aerosol products such as hair sprays and air fresheners, as well as in refrigerants and foam blowing agents. Due to its low boiling point and stability, DECAFLUOROISOBUTANE is also utilized as a working fluid in organic Rankine cycles for power generation. However, it is considered a greenhouse gas and has a high global warming potential, contributing to environmental concerns regarding its use and potential release into the atmosphere. As a result, efforts are being made to find more environmentally friendly alternatives to DECAFLUOROISOBUTANE in various applications.

InChI:InChI=1/C4F10/c5-1(2(6,7)8,3(9,10)11)4(12,13)14

Upstream product

• 75-83-2 2,2-Dimethylbutane 
• 463-82-1 2,2-dimethylpropane 
• 106-97-8 n-butane 
• 75-65-0 tert-butyl alcohol 
• 513-36-0 isobutyryl chloride 
• 110-82-7 cyclohexane 
• 677-69-0 perfluoroisopropyl iodide 
• 630-17-1 2,2-dimethylpropyl bromide 
• 753-89-9 neopentyl chloride 
• 1634-04-4 tert-butyl methyl ether 
• 594-36-5 2-methyl-2-butylchloride 

Downstream Products

• 382-24-1 1,1,1,3,3,3-hexafluoro-2-trifluoromethyl-propane 

Relevant articles and documents

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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.

THE FLUORINATION OF BUTANE OVER COBALT TRIFLUORIDE

The fluorination of butane over cobalt trifluoride has given a complex mixture of partially fluorinated compounds: 51 of these have been identified, comprising over 99percent of the products.Most were polyfluor-butanes but 1-2percent were polyfluoro-2-methylpropanes.The reaction has no synthetic utility.There was some selectivity in the fluorination: secondary C-H was convertart byed into C-F more easily then primary, and the ease of replacement of a particular H was reduced by geminal vicinal fluorines.A computer model of the fluorination was only partially successful, perhaps because the fluorination proceeded in part by simple F for H replacement and in part via alkenes: the model only allowed for the former.