2,2-Dimethylbutane

2,2-Dimethylbutane

IUPAC name	2,2-Dimethylbutane
Other names	Neohexane
Identifiers
CAS number	[558-37-2]
SMILES	CCC(C)(C)C
Properties
Molecular formula	(CH₃)₃CCH₂CH₃
Molar mass	86.177 g/mol
Appearance	colorless liquid
Density	0.791 g/l, liquid
Melting point	−98.8 °C (174.4 K)
Boiling point	49.73 °C (322.88 K)
Solubility in water	Insoluble
Thermochemistry
Std enthalpy of formation Δ_fH^o₂₉₈	−44.5 kJ/mol
Std enthalpy of combustion Δ_cH^o₂₉₈	? kJ/mol
Standard molar entropy S^o₂₉₈	? J·K⁻¹·mol⁻¹
Hazards
EU classification	Highly flammable (F+) Harmful (Xn) Dangerous for the environment (N)
NFPA 704	3 1 0
R-phrases	R11, R20, R48, R51/53, R62, R65, R67
S-phrases	S9, S16, S29, S33, S36, S37, S61, S62
Flash point	−29 °C (closed cup)
Related compounds
Related alkanes	Butane Hexane
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

2,2-Dimethylbutane, trivially known as neohexane, is the isomer of hexane containing a quaternary carbon.

References

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