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32222-M

二氯甲烷

Name: 二氯甲烷
Brand: SIAL

puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)

别名:

亚甲基氯

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About This Item

经验公式（希尔记法）:

CH₂Cl₂

CAS号:

75-09-2

分子量:

84.93

Beilstein:

1730800

EC號碼:

200-838-9

MDL號碼:

MFCD00000881

分類程式碼代碼:

12352101

PubChem物質ID:

329754106

NACRES:

NA.21

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等級

ACS reagent
puriss. p.a.

品質等級

200

agency

reag. ISO

蒸汽密度

2.9 (vs air)

蒸汽壓力

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

化驗

≥99.9% (GC)

形狀

liquid

自燃溫度

1223 °F

包含

10-60 ppm amylene as stabilizer

expl. lim.

22 %

雜質

≤0.00002% free chlorine (Cl)
≤0.0005% formaldehyde
≤0.001% free acid (as HCl)
≤0.001% non-volatile matter
≤0.01% chloroform (GC)
≤0.01% tetrachloromethane (GC)
≤0.01% water (Karl Fischer)
≤0.05% ethanol (GC)

折射率

n20/D 1.4235-1.4245
n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−95 °C (lit.)

密度

1.320-1.330 g/L at 20 °C
1.325 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl^-): ≤0.5 mg/kg

正離子痕跡

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.10 ppm
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.50 ppm
Li: ≤0.10 ppm
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.10 ppm
Na: ≤0.50 ppm
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Sr: ≤0.1 ppm
Zn: ≤0.1 mg/kg

SMILES 字串

ClCCl

適合性

passes test for reaction against H₂SO₄

InChI

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

InChI 密鑰

YMWUJEATGCHHMB-UHFFFAOYSA-N

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一般說明

Dichloromethane has been tested as a solvent medium for dipyridine-chromium(VI) oxide. Solubility was reported to be 12.5g/100ml. The apparent adsorption constant of the TiO₂ loaded activated carbon for dichloromethane was found to be inversely proportional to the quantity of loaded TiO₂.

應用

Dichloromethane may be used as a solvent for the preparation of stock solutions of carotenoids. It may be employed as a solvent in the synthesis of polylactide-based (PLA) thin films.