二氯甲烷，Dichloromethane [DCM]；puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)

等级

ACS reagent
puriss. p.a.

质量水平

200

Agency

reag. ISO

蒸汽密度

2.9 (vs air)

蒸汽压

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

测定

≥99.9% (GC)

形式

liquid

自燃温度

1223 °F

包含

~25 mg/L amylene as stabilizer

expl. lim.

22 %

杂质

≤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

−97 °C (lit.)

密度

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

痕量阴离子

chloride (Cl^-): ≤0.5 mg/kg

痕量阳离子

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.1 mg/kg
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: ≤0.5 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Mo: ≤0.1 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Sr: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

SMILES string

ClCCl

适用性

passes test for reaction against H₂SO₄

InChI

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

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N