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270997

Sigma-Aldrich

二氯甲烷

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

同義詞:

DCM, 亚甲基氯

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About This Item

經驗公式(希爾表示法):
CH2Cl2
CAS號碼:
分子量::
84.93
Beilstein:
1730800
EC號碼:
MDL號碼:
分類程式碼代碼:
12352101
PubChem物質ID:
NACRES:
NA.21

等級

anhydrous

品質等級

agency

suitable for EPA 1613

蒸汽密度

2.9 (vs air)

蒸汽壓力

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

化驗

≥99.8%

形狀

liquid

自燃溫度

1223 °F

包含

40-150 ppm amylene as stabilizer

expl. lim.

22 %

技術

gas chromatography (GC): suitable

雜質

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

蒸發殘留物

<0.0005%

折射率

n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−95 °C (lit.)

密度

1.325 g/mL at 25 °C (lit.)

SMILES 字串

ClCCl

InChI

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

InChI 密鑰

YMWUJEATGCHHMB-UHFFFAOYSA-N

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一般說明

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。

應用

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。

象形圖

Health hazardExclamation mark

訊號詞

Warning

危險分類

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

標靶器官

Central nervous system

儲存類別代碼

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

水污染物質分類(WGK)

WGK 2

閃點(°F)

does not flash

閃點(°C)

does not flash

個人防護裝備

Eyeshields, Faceshields, Gloves


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