蒸气密度	2.6 (vs air)

蒸气压	11.17 psi ( 20 °C)

折射率	n20/D 1.354(lit.)

LogP	3.4 at 20℃

溶解度

0.048g/l

形态

Liquid

酸度系数(pKa)

>14 (Schwarzenbach et al., 1993)

颜色	Clear colorless

气味 (Odor)

gasoline-like odor

爆炸极限值(explosive limit)

1.3-7.6%(V)

嗅觉阈值(Odor Threshold)

1.3ppm

水溶解性	Miscible with water, hydrocarbons, oils, alcohol and ether.

最大波长(λmax)

λ: 192 nm Amax: 1.00 λ: 210 nm Amax: 0.30 λ: 220 nm Amax: 0.07 λ: 240-400 nm Amax: 0.01

BRN

1730723

Henry's Law Constant

(atm?m3/mol): 1.24 at 25 °C (approximate - calculated from water solubility and vapor pressure)

Dielectric constant

1.8（20℃）

暴露限值	ACGIH TLV: TWA 600 ppm (adopted).

NIST化学物质信息

Butane, 2-methyl-(78-78-4)

EPA化学物质信息

2-Methylbutane (78-78-4)