2-Methylpentane

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2-Methylpentane
Skeletal formula of 2-methylpentane
2-Methylpentane 3D.png
Names
Preferred IUPAC name
2-Methylpentane[2]
Other names
Isohexane[1]
Identifiers
3D model (
JSmol
)
1730735
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard
100.003.204 Edit this at Wikidata
EC Number
  • 203-523-4
MeSH 2-methylpentane
RTECS number
  • SA2985000
UNII
UN number 1208
  • InChI=1S/C6H14/c1-4-5-6(2)3/h6H,4-5H2,1-3H3 checkY
    Key: AFABGHUZZDYHJO-UHFFFAOYSA-N checkY
  • CCCC(C)C
Properties
C6H14
Molar mass 86.178 g·mol−1
Appearance Colorless liquid
Odor Odorless
Density 653 mg mL−1
Melting point −160 to −146 °C; −256 to −231 °F; 113 to 127 K
Boiling point 60 to 62 °C; 140 to 143 °F; 333 to 335 K
log P 3.608
Vapor pressure 46.7 kPa (at 37.7 °C)
5.7 nmol Pa−1 kg−1
-75.26·10−6 cm3/mol
1.371
Thermochemistry
194.19 J K−1 mol−1
290.58 J K−1 mol−1
Std enthalpy of
formation
fH298)
−205.3–−203.3 kJ mol−1
Hazards
GHS labelling:
GHS09: Environmental hazard
Danger
H225, H304, H315, H336, H411
P210, P261, P273, P301+P310, P331
NFPA 704 (fire diamond)
2
3
0
Flash point −7 °C (19 °F; 266 K)
306 °C (583 °F; 579 K)
Explosive limits
1.2–7%
NIOSH (US health exposure limits):
PEL (Permissible)
none[3]
Related compounds
Related alkanes
Related compounds
2-Ethyl-1-butanol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Methylpentane, trivially known as isohexane, is a

molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain. Using a quantitative structure-activity relationship (QSAR) prediction model, 2-Methylpentane has a research octane number (RON) of 75, motor octane number (MON) of 77, and cetane number (CN) of 29. [4]

See also

  • Heteropoly acid

References

  1. .
  2. ^ "2-methylpentane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification and Related Records. Retrieved 5 March 2012.
  3. ^ NIOSH Pocket Guide to Chemical Hazards. "#0323". National Institute for Occupational Safety and Health (NIOSH).
  4. CiteSeerX 10.1.1.1074.651.{{cite journal}}: CS1 maint: multiple names: authors list (link
    )