蒸气密度	2.97 (vs air)

蒸气压	5.35 psi ( 20 °C)

折射率	n20/D 1.369(lit.)

溶解度	In methanol: 590 and 800 g/L at 5 and 10 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961). Miscible with other aliphatic hydrocarbons, e.g., pentane, hexane, heptane, etc.

形态

Liquid

酸度系数(pKa)

>14 (Schwarzenbach et al., 1993)

颜色	Clear colorless to slightly yellow

爆炸极限值(explosive limit)

~7.7%

嗅觉阈值(Odor Threshold)

20ppm

水溶解性

insoluble

BRN

1730736

Henry's Law Constant

1.69(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981)

Dielectric constant

1.8700000000000001

暴露限值	ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).

NIST化学物质信息

Butane, 2,2-dimethyl-(75-83-2)

EPA化学物质信息

2,2-Dimethylbutane (75-83-2)