Merck
所有图片(4)

270997

Sigma-Aldrich

二氯甲烷

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

别名:
DCM, 亚甲基氯
Empirical Formula (Hill Notation):
CH2Cl2
CAS号:
分子量:
84.93
Beilstein:
1730800
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

质量水平

200

等级

anhydrous

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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相关类别

一般描述

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。
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。

应用

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。
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。

包装

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

分析证书

请输入批号搜索分析证书(COA)。

原产地证书 (CofO)

请输入批号搜索原产地证书(COO)。

Cesar R Rodriguez-Saona
Journal of visualized experiments : JoVE, (58)(58), doi:10-doi:10 (2012-01-05)
Herbivore-induced plant volatiles (HIPVs) are commonly emitted from plants after herbivore attack. These HIPVs are mainly regulated by the defensive plant hormone jasmonic acid (JA) and its volatile derivative methyl jasmonate (MeJA). Over the past 3 decades researchers have documented
Efficient Preparation of 2-Bromo-6-lithiopyridine via Lithium? Bromine Exchange in Dichloromethane
Peterson MA & Mitchell JR
The Journal of Organic Chemistry, 62(23), 8237-8239 (1997)
Carbon-carbon bond formation catalyzed by lithium perchlorate in dichloromethane
Reetz MT & Fox DN
Tetrahedron Letters, 34(7), 1119-1122 (1993)
Dipyridine-chromium (VI) oxide oxidation of alcohols in dichloromethane.
Collins JC, et al.
Tetrahedron Letters, 9(30), 3363-3366 (1968)
Effect of activated carbon content in TiO2-loaded activated carbon on photodegradation behaviors of dichloromethane.
Torimoto T, et al.
Journal of Photochemistry and Photobiology A: Chemistry, 103(1), 153-157 (1997)

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