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二乙胺

二乙胺[1]
Skeletal formula of diethylamine
Ball and stick model of the diethylamine molecule
IUPAC名
N-Ethylethanamine
识别
CAS号 109-89-7  checkY
PubChem 8021
ChemSpider 7730
SMILES
 
  • CCNCC
Beilstein 605268
UN编号 1154
EINECS 203-716-3
ChEBI 85259
RTECS HZ8750000
MeSH diethylamine
性质
化学式 C4H11N
摩尔质量 73.14 g·mol−1
外观 无色液体
气味 氨味或鱼腥味
密度 0.7074 g mL−1
熔点 223.35 K(−49.80 °C)
沸点 327.9—329.5 K(54.8—56.4 °C)
溶解性 混溶
log P 0.657
蒸气压 24.2–97.5 kPa
kH 150 μmol Pa−1 kg−1
pKa 10.98(铵盐形式)
磁化率 -56.8·10−6 cm3/mol
折光度n
D
1.385
热力学
ΔfHm298K −131 kJ mol−1
ΔcHm −3.035 MJ mol−1
热容 178.1 J K−1 mol−1
危险性
GHS危险性符号
《全球化学品统一分类和标签制度》(简称“GHS”)中易燃物的标签图案 《全球化学品统一分类和标签制度》(简称“GHS”)中腐蚀性物质的标签图案 《全球化学品统一分类和标签制度》(简称“GHS”)中有害物质的标签图案
GHS提示词 危险
H-术语 H225, H302, H312, H314, H332
P-术语 P210, P280, P305+351+338, P310
NFPA 704
3
3
1
 
爆炸极限 1.8–10.1%
PEL TWA 25 ppm (75 mg/m3)[2]
致死量或浓度:
LD50中位剂量
540 mg/kg (大鼠, 口)
500 mg/kg (小鼠, 口)[3]
LC50中位浓度
4000 ppm (大鼠, 4 hr)[3]
相关物质
相关化学品 二甲胺
二丙胺
二丁胺
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二乙胺是一种有机化合物,化学式为(CH3CH2)2NH,是一种仲胺。它是可燃性的弱碱性液体,和大部分溶剂混溶。

合成

乙醇在催化剂的存在下和反应,将产物精馏可以得到二乙胺。[4]

参考文献

  1. ^ Merck Index, 12th Edition, 3160
  2. ^ NIOSH Pocket Guide to Chemical Hazards. #0209. NIOSH. 
  3. ^ 3.0 3.1 Diethylamine. Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH). 
  4. ^ 二乙胺页面存档备份,存于互联网档案馆). ChemicalBook. [2019-5-17]
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二乙胺
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