2,3-Dimethylbutane

2,3-Dimethylbutane

Names
IUPAC name 2,3-Dimethylbutane[1]
Other names 23DMB
Identifiers
Beilstein Reference	1730737
CAS Registry Number	79-29-8 Y
ChemSpider	6340 Y
EC number	201-193-6
InChI InChI=1S/C6H14/c1-5(2)6(3)4/h5-6H,1-4H3 Y Key: ZFFMLCVRJBZUDZ-UHFFFAOYSA-N Y
Jmol-3D images	Image
MeSH	2,3-dimethylbutane
PubChem	6589
RTECS number	EJ9350000
SMILES CC(C)C(C)C
UN number	2457
Properties
Molecular formula	C6H14
Molar mass	86.18 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)
Henry's law constant (kH)	7.6 nmol Pa−1 kg−1
Refractive index (nD)	1.375
Thermochemistry
Specific heat capacity (C)	189.02 J K−1 mol−1
Std molar entropy (So298)	278.85 J K−1 mol−1
Std enthalpy of formation (ΔfHo298)	−208.0–−206.0 kJ mol−1
Std enthalpy of combustion (ΔcHo298)	−4.1558–−4.1540 MJ mol−1
Hazards
GHS pictograms
GHS signal word	DANGER
GHS hazard statements	H225, H304, H315, H336, H411
GHS precautionary statements	P210, P261, P273, P301+310, P331
EU Index	601-007-00-7
EU classification	F Xn N
R-phrases	R11, R38, R65, R67, R51/53
S-phrases	(S2), S16, S29, S33
Flash point	−29 °C (−20 °F; 244 K)
Autoignition temperature	420 °C (788 °F; 693 K)
Explosive limits	1.2–7.7%
US health exposure limits (NIOSH):
PEL (Permissible)	none[2]
Related compounds
Related alkanes	Neopentane 2,2-Dimethylbutane Triptane Tetramethylbutane Tetraethylmethane 2,2,4-Trimethylpentane 2,3,3-Trimethylpentane 2,3,4-Trimethylpentane Tetra-tert-butylmethane
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

2,3-Dimethylbutane, also known as diisopropyl, 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.

References