dimethylamine

• ChemBase编号: 77098
• 分子式: C2H7N
• 平均质量: 45.08368
• 单一同位素质量: 45.05784923
• SMILES: N(C)C
• Canonical SMILES: CNC
• InChI: InChI=1S/C2H7N/c1-3-2/h3H,1-2H3
• InChIKey: ROSDSFDQCJNGOL-UHFFFAOYSA-N

名称和登记号

名称

• IUPAC标准名: dimethylamine
• IUPAC传统名: dimethylamine
• 别名: 二甲胺; 二甲胺 溶液; N-Methylmethanamine; Dimethylamine; Dimethylamine, 40% aqueous solution; Dimethylamine; Dimethylamine solution

登记号

• CAS号: 124-40-3
• EC号: 204-697-4
• MDL号: MFCD00008288
• Beilstein号: 605257
• 默克索引号: 143228
• PubChem SID: 24864274; 24864412; 162041972; 24857770; 24866705; 24864290; 24864215
• PubChem CID: 674
• CHEBI ID: 17170
• CHEMBL: 120433
• Chemspider ID: 654
• Gmelin ID: 849
• KEGG ID: C00543
• 医学主题词(MeSH): dimethylamine
• 美国药典/FDA物质标识码: ARQ8157E0Q
• 维基百科标题: Dimethylamine

理论计算性质

• 质子受体: 1
• 质子供体: 1
• LogD (pH = 5.5): -3.427765
• LogD (pH = 7.4): -3.0703833
• Log P: -0.19287847
• 摩尔折射率: 14.6934 cm^3
• 极化性: 5.9539757 Å^3
• 极化表面积: 12.03 Å^2
• 可自由旋转的化学键: 0
• 里宾斯基五规则: true

分子性质

理化性质

• 溶解度: 3.540 kg L^-1 in water
• 外观: Colorless gas; Liquid; Liquid in Ampoule
• 熔点: -93 °C(lit.); -93.00°C (180.15K)
• 沸点: ~60 °C; 6.85000000000002 - 8.85000000000002°C (280 - 282 K); 7 °C(lit.)
• 闪点: 15°C(60°F); 16 °C; -16 °C; 16°C; 21.2 °F; -25.6 °F; 3.2 °F; -32 °C; -32.8 °F; -36 °C; 41 °F; 5 °C; -6 °C; 60.8 °F
• 自燃点: 401 °C; 753 °F
• 密度: 0.68 g/mL at 20 °C(lit.); 0.775 g/mL at 25 °C; 0.85 g/mL at 25 °C; 0.89; 0.89 g/mL at 25 °C; 0.890
• 折射率: 1.3700; n20/D 1.37
• 蒸汽压: 1277 mmHg ( 20 °C); 16.97 psi ( 55 °C); 170.3 kPa (at 20 °C); 212 mmHg ( 20 °C)
• 蒸汽密度: 1.55 (15 °C, vs air); 1.55 (vs air)
• 分配系数: -0.362
• pKa: 10.64
• pKb: 3.36
• 亨利常数: 310 μmol Pa^-1 kg^-1
• 气味: Ichtyal, ammoniacal
• 标准摩尔生成焓 (ΔfH^o298): -21–-17 kJ mol^-1

安全信息

• 保存注意事项: Highly Flammable/Corrosive/Hygroscopic
• RTECS编号: IP8750000
• 欧盟危险性物质标志: 腐蚀性(Corrosive) (C); 易燃性(Flammable) (F); 高度易燃性(Highly flammable) (F+); 有毒(Toxic) (T); X; 有害性(Harmful) (Xn)
• 联合国危险货物编号: 1032; 1160; 1992; 2924; UN1160
• 德国WGK号: 2
• 联合国危险货物等级: 2.1; 3
• 联合国危险货物包装类别(PG): 1; 2; II
• 危险公开号: 11-19-20-37/38-41; 11-20/22-34; 11-20-37/38-41; 11-23/24/25-37/38-39/23/24/25-41; 12-20-37/38-41; r12, r20, r37/38, r41
• 安全公开号: 16-26-36/37/39-45; 16-26-39; 9-16-23-26-36/37/39; s2, s16, s26, s39
• TSCA收录: 是
• 欧盟危险品索引: 612-001-00-9
• GHS危险品标识: GHS corrosion; GHS exclamation mark; GHS flame; GHS02; GHS04; GHS05; GHS06; GHS07; GHS08
• GHS警示词: DANGER; Danger
• NFPA704:
  

  4

  3

  0
• 爆炸极限: 14.4 %; 2.8–14.4%
• GHS危险声明: 220, 302, 315, 318, 332, 335; H220-H280-H302-H315-H318-H332-H335; H220-H280-H315-H318-H332-H335; H225-H280-H302-H315-H318-H332-H335; H225-H301-H311-H315-H318-H331-H370; H225-H302-H314; H225-H302-H314-H332; H225-H302-H314-H332-H335; H225-H302-H314-H335; H225-H302-H315-H318-H335; H225-H314-H335; H225-H331-H302-H335-H314-H318
• GHS警示性声明: 210, 261, 280, 305+351+338; P210-P241-P303+P361+P353-P305+P351+P338-P405-P501A; P210-P260-P280-P301 + P310-P305 + P351 + P338-P311; P210-P261-P280-P305 + P351 + P338; P210-P261-P280-P305 + P351 + P338-P310; P210-P261-P280-P305 + P351 + P338-P410 + P403; P210-P280-P305 + P351 + P338-P310
• 个人保护装置: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US); Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter; Eyeshields, Faceshields, Gloves, half-mask respirator (US), multi-purpose combination respirator cartridge (US); Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• RID/ADR: UN 1032 2.1; UN 1160 3/PG 2; UN 1992 3/PG 2; UN 2924 3/PG 1; UN 2924 3/PG 2
• 欧盟补充危害声明: May form explosive peroxides.

产品相关信息

• 纯度: ≥99%; ≥99.0%; ≥99.5%; 40% w/w aq. soln.
• 浓度: 2.0 M in methanol; 2.0 M in THF; 33% in absolute ethanol (~5.6 M); 40 wt. % in H2O; 40% in H2O (~7.9 M); 50% in H2O; 60% in H2O (~11.0 M)
• 级别: anhydrous; CP; purum
• 包装: 1 ea of 250 mL
• 杂质: ≤0.05% ammonia; ≤0.2% methylamine; ≤0.2% trimethylamine
• 线性分子式: (CH3)2NH

详细说明

Sigma Aldrich - 145874

Legal Information
DuPont 制造

Sigma Aldrich - 388246

包装
25, 4×25, 100 mL in Sure/Seal™

Sigma Aldrich - 426458

包装
1, 2 L in glass bottle
100 mL in glass bottle

Sigma Aldrich - 391956

包装
100, 800 mL in Sure/Seal™

Sigma Aldrich - 38930

Other Notes
可能实行销售限制
包装
100mL 压力罐包装（净重 ~68g）

Sigma Aldrich - 38932

Other Notes
Sales restrictions may apply
包装
Cylinder with net ~1.1 kg

Sigma Aldrich - 38936

Other Notes
可能实行销售限制
包装
罐装，净重 ~15kg

Sigma Aldrich - 295280

包装
1 kg in Sure-Pac™
100, 400 g in Sure-Pac™
Recommended products
推荐使用不锈钢软管接头 Z146838 或不锈钢体微型气流阀 Z513547。

Sigma Aldrich - 38931

Other Notes
可能实行销售限制
包装
250mL 压力罐包装（净重 ~170g）