02575

Dichloromethane

analytical standard

• Synonym(s): 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: 329747461
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• vapor density: 2.9 (vs air)
• vapor pressure: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C)
• Assay: ≥99.9% (GC)
• autoignition temp.: 1223 °F
• shelf life: limited shelf life, expiry date on the label
• contains: 0.002% amylene as stabilizer
• expl. lim.: 22 %
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.424 (lit.); n20/D 1.424
• bp: 39.8-40 °C (lit.)
• mp: −95 °C (lit.)
• density: 1.325 g/mL at 25 °C (lit.)
• application(s): agriculture; cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• SMILES string: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• InChI key: YMWUJEATGCHHMB-UHFFFAOYSA-N

Description

General description

Dichloromethane (methylene chloride) is a clear, colorless, non-flammable, volatile liquid chlorinated hydrocarbon with a sweet, pleasant smell and emits highly toxic fumes of phosgene when heated to decomposition. It is primarily used as a solvent in paint removers, in aerosol formulations, and as a solvent in the manufacture of pharmaceuticals. It is also used as a degreasing agent in electronics manufacturing and as an ethane foam blowing agent.[1] Above all that it is used as an extraction solvent in the preparation of decaffeinated coffee, hop extracts and spice oleoresins.[2]

Application

Dichloromethane may be used as an analytical reference standard for the determination of the analyte in spice oleoresins, biological samples as well as decaffeinated instant and ground coffee samples by gas chromatography (GC) technique.[3][4][5][6]

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