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CAS号:
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124-40-3
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英文名称:
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Dimethylamine
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英文同义词:
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DMA-40;DMA-60;DMA-65;(CH3)2NH;ai3-15638-x;Dimethylamin;DIMETHYLAMINE;DiMethylaMine aq;Dimethylamine (I);N N DIMETYLANILINE
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中文名称:
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二甲胺
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中文同义词:
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二甲胺;二甲胺醇;国标二甲胺;二甲胺甲醇;水中二甲胺;二甲胺,溶液;二甲胺33%;甲醇中二甲胺;N-甲基甲胺;二甲胺(无水)
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分子式:
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C2H7N
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分子量:
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45.08
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- 熔点 :
- −93 °C(lit.)
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- 沸点 :
- 7 °C(lit.)
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- 密度 :
- 0.89 g/mL at 25 °C
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- 蒸气密度:
- 1.55 (vs air)
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- 蒸气压:
- 16.97 psi ( 55 °C)
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- 折射率 :
- n 20/D 1.37
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- 闪点 :
- 60 °F
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- 储存条件 :
- Flammables area
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- 溶解度 :
- very soluble in water (163 g/100 g water at 40°C); soluble in ethanol, ethyl ether, and many organic solvents
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- 酸度系数(pKa):
- 10.68(at 25℃)
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- 形态:
- Solution
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- 颜色:
- Clear slightly yellow
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- 气味 (Odor):
- Ammonical odour
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- 嗅觉阈值(Odor Threshold):
- 0.033ppm
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- 爆炸极限值(explosive limit):
- 14.4%
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- 水溶解性 :
- Miscible with water and most organic solvents.
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- 敏感性 :
- Hygroscopic
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- Merck :
- 14,3228
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- BRN :
- 605257
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- Henry's Law Constant:
- 1.75(x 10-5 atm?m3/mol) at 25 °C (Christie and Crisp, 1967)
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- 暴露限值:
- TLV-TWA 10 ppm (～18 mg/m3) (ACGIH, MSHA, and OSHA); IDLH 2000 ppm (NIOSH).
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- 稳定性:
- Stable. Generally used as a solution in water at concentrations up to around 40%. Extremely flammable in the pure form. Incompatible with strong oxidizing agents.
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- CAS 数据库:
- 124-40-3(CAS DataBase Reference)
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- NIST化学物质信息:
- Methanamine, N-methyl-(124-40-3)
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- EPA化学物质信息:
- Dimethylamine (124-40-3)
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| 危险类别码 : |
12-20-37/38-41-34-20/22-11-39/23/24/25-23/24/25-52/53-40-19 |
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| 安全说明 : |
3-16-26-29-36/37/39-45-39-61 |
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| DOT Classification: |
2.1 (Flammable gas) |
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| 毒害物质数据: |
124-40-3(Hazardous Substances Data) |
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| 毒性: |
Acute oral LD50 for guinea pigs 340 mg/kg, mice 316 mg/kg, rats 698 mg/kg, rabbits 240 mg/kg (quoted, RTECS, 1985). |
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