Dichloromethane is a chlorinated organic solvent that is susceptible to degradation with time. This can be suppressed by adding amylene as a stabilizer.
Synonyms: DCM; Methylene chloride
Molecular Formula: CH2Cl2
Molecular Weight: 84.93
Linear Structural Formula: CH2Cl2
MDL Number: MFCD00000881
Purity: >=99.8%
Melting Point: -97 C (lit.)
Density: 1.325 g/mL at 25 C (lit.)
Refractive Index: n20/D 1.424 (lit.)
Application: Dichloromethane may be used as a solvent for the oxidation of primary and secondary alcohols using dipyridine-chromium(VI) oxide. Lithium perchlorate suspended in DCM is an effective medium for Mukaiyama aldol reactions of aldehydes with silyl ketene acetal. DCM may also be used as solvent for the synthesis of 2-bromo-6-lithiopyridine from 2,6-dibromopyridine via lithium-bromine exchange reaction.
Assay: ≥99.8%
Autoignition Temp.: 1223°F
BP: 39.8-40°C mmHg(lit.)
Contains: 50-150 ppm amylene as stabilizer
Density: 1.325 g/mL at 25°C(lit.)
Evapn. Residue: <0.0005%
Expl. Lim.: 22 %
Grade: anhydrous
Impurities: ≤0.001% water
MP: −97°C(lit.)
Refractive Index: n20/D 1.424(lit.)
Vapor Density: 2.9 (vs air)
Vapor Pressure: 6.83 psi ( 20°C)