Perfluorobutane

Chemical compound From Wikipedia, the free encyclopedia

Perfluorobutane (PFB) is an inert, high-density colorless gas. It is a simple fluorocarbon with a n-butane skeleton and all the hydrogen atoms replaced with fluorine atoms.

Quick facts Names, Identifiers ...
Perfluorobutane
Structural formula of perfluorobutane
Ball-and-stick model of perfluorobutane
Names
Preferred IUPAC name
Decafluorobutane[1]
Other names
  • Perflubutane (USAN)
  • DFB
  • Halocarbon 610
  • R610
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.005.983 Edit this at Wikidata
EC Number
  • 206-580-3
KEGG
UNII
  • InChI=1S/C4F10/c5-1(6,3(9,10)11)2(7,8)4(12,13)14 ☒N
    Key: KAVGMUDTWQVPDF-UHFFFAOYSA-N ☒N
  • InChI=1/C4F10/c5-1(6,3(9,10)11)2(7,8)4(12,13)14
    Key: KAVGMUDTWQVPDF-UHFFFAOYAC
  • C(C(C(F)(F)F)(F)F)(C(F)(F)F)(F)F
Properties
C4F10
Molar mass 238.028 g·mol−1
Appearance Colorless gas
Density
Melting point −128 °C (−198 °F; 145 K)[3]
Boiling point −1.7 °C (28.9 °F; 271.4 K)[2]
1.5 mg/L[3]
log P 3.93[3]
Vapor pressure 330.3 kPa (47.91 psi)[3]
Viscosity 0.01218 cP[2]
Hazards
Safety data sheet (SDS) MSDS at Linde Gas
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Uses

Perfluorobutane can replace Halon 1301 in fire extinguishers, as well as the gas component for newer generation microbubble ultrasound contrast agents.[4] Sonazoid is one such microbubble formulation developed by Amersham Health that uses perfluorobutane for the gas core.[5]

Environmental impacts

If perfluorobutane is released to the environment, it will not be broken down in air. It is not expected to be broken down by sunlight. It will move into air from soil and water surfaces. If it is exposed to conditions of extreme heat from misuse, equipment failure, etc., toxic decomposition products including hydrogen fluoride can be produced.[6]

Perfluorobutane has an estimated lifetime greater than 2600 years and a high global warming potential value of 10,000 over 100 years.[7]

References

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