Merck
All Photos(4)

270997

Sigma-Aldrich

二氯甲烷

anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer

Synonym(s):
DCM, 亚甲基氯
Empirical Formula (Hill Notation):
CH2Cl2
CAS Number:
Molecular Weight:
84.93
Beilstein:
1730800
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

anhydrous

质量水平

200

蒸汽密度

2.9 (vs air)

蒸汽压

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)
6.86 psi ( 20 °C)

测定

≥99.8%

形式

liquid

自燃温度

1223 °F

包含

40-150 ppm amylene as stabilizer

expl. lim.

22 %

technique(s)

gas chromatography (GC): suitable

杂质

≤0.001% water
≤0.005% water (100 mL pkg)

蒸发残留物

<0.0005%

折射率

n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−97 °C (lit.)

密度

1.325 g/mL at 25 °C (lit.)

SMILES string

ClCCl

InChI

1S/CH2Cl2/c2-1-3/h1H2

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

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Related Categories

一般描述

二氯甲烷是一种氯化有机溶剂,易随时间降解。添加戊烯作为稳定剂可抑制其降解。
对二氯甲烷作为二吡啶-氧化铬(VI)的溶剂介质进行了测试。据报道,溶解度为12.5 g/100 ml。研究了活性炭载体上TiO2负载量对二氯甲烷光分解的作用。

应用

二氯甲烷可用于气相色谱法(GC)定量检测草食性动物(舞毒蛾)诱导的蓝莓挥发物。
二氯甲烷可用作使用二吡啶-氧化铬(VI)氧化伯醇和仲醇的溶剂。悬浮于DCM中的高氯酸锂是醛与甲硅烷基乙烯酮缩醛进行Mukaiyama醇醛缩合反应的有效介质。DCM也可用作通过锂-溴交换反应由2,6-二溴吡啶合成2-溴-6-硫代吡啶的溶剂。

包装

100, 12×100 mL in Sure/Seal™
1, 6×1, 2, 4×2 L in Sure/Seal™
18 L in Pure-Pac™ 1
20 L in Pure-Pac™ 2
200 L in Pure-Pac™ 1

象形图

Exclamation markHealth hazard

警示用语:

Warning

危险分类

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Central nervous system

储存分类代码

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

闪点(F)

does not flash

闪点(C)

does not flash

个人防护装备

Eyeshields, Faceshields, Gloves

Certificate of Analysis

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Certificate of Origin

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