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CAS号:
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75-83-2
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英文名称:
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2,2-Dimethylbutane
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英文同义词:
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neobutan;NEOBUTANE;NEOHEXANE;(CH3)3CCH2CH3;2.2-DiMethylbu;Trimethylpropane;tert-Butylethane;2-Ethylisobutane;2,2-dimethyl-butan;3,3-DIMETHYLBUTANE
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中文名称:
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2,2-二甲基丁烷
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中文同义词:
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新己烷;叔丁基乙烷;2-乙基异丁烷;2,2-甲基丁烷;2,2-二甲丁烷;2,2一二甲基丁烷;2，2-二甲基丁烷;2,2-二甲基丁烷,99%;2,2-二甲基丁烷 标准品;1,1,1,2-四甲基乙烷
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分子式:
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C6H14
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分子量:
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86.18
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- 熔点 :
- −100 °C(lit.)
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- 沸点 :
- 50 °C(lit.)
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- 密度 :
- 0.649 g/mL at 25 °C(lit.)
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- 蒸气密度:
- 2.97 (vs air)
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- 蒸气压:
- 5.35 psi ( 20 °C)
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- 折射率 :
- n 20/D 1.369(lit.)
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- 闪点 :
- <−30 °F
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- 储存条件 :
- Flammables area
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- 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.
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- 酸度系数(pKa):
- >14 (Schwarzenbach et al., 1993)
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- 形态:
- Liquid
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- 颜色:
- Clear colorless to slightly yellow
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- 嗅觉阈值(Odor Threshold):
- 20ppm
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- 爆炸极限值(explosive limit):
- ~7.7%
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- 水溶解性 :
- insoluble
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- BRN :
- 1730736
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- Henry's Law Constant:
- 1.69(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981)
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- 暴露限值:
- ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
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- 稳定性:
- Stable, but may be moisture sensitive. Highly flammable. Incompatible with strong oxidizing agents.
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- CAS 数据库:
- 75-83-2(CAS DataBase Reference)
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- NIST化学物质信息:
- Butane, 2,2-dimethyl-(75-83-2)
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- EPA化学物质信息:
- 2,2-Dimethylbutane (75-83-2)
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| 危险类别码 : |
11-38-51/53-65-67 |
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| 毒害物质数据: |
75-83-2(Hazardous Substances Data) |
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| 毒性: |
Reported as an impurity (0.2 wt %) in 99.0–99.7 wt % 2,3-dimethylbutane (Chevron Phillips, 2004). |
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