2,3-Dimethylbutane

2,3-Dimethylbutane is an isomer of hexane. It has the chemical formula (CH3)2CHCH(CH3)2. It is a colorless liquid which boils at 57.9 °C.

2,3-Dimethylbutane
Names
IUPAC name
2,3-Dimethylbutane[1]
Other names
Diisopropyl, 23DMB, biisopropyl
Identifiers
3D model (JSmol)
1730737
ChEBI
ChemSpider
ECHA InfoCard 100.001.085
EC Number
  • 201-193-6
MeSH 2,3-dimethylbutane
RTECS number
  • EJ9350000
UNII
UN number 2457
Properties
C6H14
Molar mass 86.178 g·mol−1
Appearance Colorless liquid
Odor Odorless
Density 662 mg mL−1
Melting point −136 to −124 °C; −213 to −191 °F; 137 to 149 K
Boiling point 57.9 to 58.3 °C; 136.1 to 136.8 °F; 331.0 to 331.4 K
Vapor pressure 26.1 kPa (at 21.1 °C)
7.6 nmol Pa−1 kg−1
-76.22·10−6 cm3/mol
1.375
Thermochemistry
189.02 J K−1 mol−1
278.85 J K−1 mol−1
−208.0–−206.0 kJ mol−1
−4.1558–−4.1540 MJ mol−1
Hazards
GHS pictograms
GHS Signal word Danger
H225, H305, H315, H336, H411
P210, P261, P273, P301+310, P331
Flash point −29 °C (−20 °F; 244 K)
420 °C (788 °F; 693 K)
Explosive limits 1.2–7.7%
NIOSH (US health exposure limits):
PEL (Permissible)
 none[2]
Related compounds
Related alkanes
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

References
  1. "2,3-dimethylbutane - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification and Related Records. Retrieved 10 March 2012.
  2. NIOSH Pocket Guide to Chemical Hazards. "#0323". National Institute for Occupational Safety and Health (NIOSH).


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