270997

Dichloromethane

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

• Synonym(s): DCM, Methylene chloride
• Empirical Formula (Hill Notation): CH₂Cl₂
• CAS Number: 75-09-2
• Molecular Weight: 84.93
• Beilstein: 1730800
• EC Number: 200-838-9
• MDL number: MFCD00000881
• UNSPSC Code: 12352101
• PubChem Substance ID: 57648216
• NACRES: NA.21

Properties

• grade: anhydrous
• Quality Level: 200
• Agency: suitable for EPA 1613
• vapor density: 2.9 (vs air)
• vapor pressure: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C); 6.86 psi ( 20 °C)
• Assay: ≥99.8%
• form: liquid
• autoignition temp.: 1223 °F
• contains: 40-150 ppm amylene as stabilizer
• expl. lim.: 22 %
• technique(s): gas chromatography (GC): suitable
• impurities: ≤0.001% water; ≤0.005% water (100 mL pkg)
• evapn. residue: <0.0005%
• refractive index: n20/D 1.424 (lit.)
• bp: 39.8-40 °C (lit.)
• mp: −95 °C (lit.)
• density: 1.325 g/mL at 25 °C (lit.)
• SMILES string: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• InChI key: YMWUJEATGCHHMB-UHFFFAOYSA-N

Description

General description

Dichloromethane has been tested as a solvent medium for the dipyridine-chromium(VI) oxide. Solubility was reported to be 12.5g/100ml. Role of quantity of TiO₂ loading on activated carbon support employed in the photodecomposition of dichloromethane has been investigated.

Dichloromethane is a chlorinated organic solvent that is susceptible to degradation with time. This can be suppressed by adding amylene as a stabilizer.

Application

Dichloromethane has been used for the quantification of herbivore (gypsy moth) induced blueberry volatiles by gas chromatography (GC).

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.

Packaging

View returnable container options.

Other Notes

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Safety Information

• Pictograms: GHS08,GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H336,H351
• Precautionary Statements: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Central nervous system
• Storage Class Code: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 2
• Flash Point(F): does not flash
• Flash Point(C): does not flash
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves