439223

Dichlorométhane

suitable for HPLC, ≥99.9%, contains 40-150 ppm amylene as stabilizer

• Synonyme(s) : Chlorure de méthylène
• Formule empirique (notation de Hill): CH₂Cl₂
• Numéro CAS: 75-09-2
• Poids moléculaire : 84.93
• Numéro Beilstein : 1730800
• Numéro CE : 200-838-9
• Numéro MDL: MFCD00000881
• Code UNSPSC : 12190000
• ID de substance PubChem : 24867491
• Nomenclature NACRES : NA.21

Propriétés

• Densité de vapeur: 2.9 (vs air)
• Niveau de qualité: 100
• Pression de vapeur: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C)
• Pureté: ≥99.9%
• Forme: liquid
• Température d'inflammation spontanée: 1223 °F
• Contient: 40-150 ppm amylene as stabilizer
• Limite d'explosivité: 22 %
• Technique(s): HPLC: suitable
• Impuretés: Free halogens, passes test; ≤0.0003 meq/g Titr. acid; ≤0.02% water
• Résidus d'évap.: <0.0003%
• Couleur: APHA: ≤10; clear
• Indice de réfraction: n20/D 1.424 (lit.)
• Point d'ébullition: 39.8-40 °C (lit.)
• Pf: −95 °C (lit.)
• Densité: 1.325 g/mL at 25 °C (lit.)
• λ: H₂O reference
• Absorption UV: λ: 235 nm A_max: 1.00; λ: 240 nm A_max: 0.20; λ: 250 nm A_max: 0.05; λ: 260 nm A_max: 0.02; λ: 340-400 nm A_max: 0.01
• Adéquation: passes test for HPLC
• Chaîne SMILES: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• Clé InChI: YMWUJEATGCHHMB-UHFFFAOYSA-N

Description

Description générale

Dichloromethane (DCM) is a chlorinated organic solvent with a wide range of industrial applications. It has C_2v symmetry, low boiling point, high density and is immiscible in water. Degradation of DCM by various methods has been reported. Ultrasonic absorption studies of liquid DCM shows strong relaxation effect. A study reports the dielectric characteristics of DCM over a wide frequency range. DCM is susceptible to degradation with time, which can be suppressed by adding amylene as a stabilizer.

Application

Dichloromethane (Methylene chloride) may be used in the following processes:

• To compose ultrasonic baths for cleaning and protection of aluminum coating over atactic-PMMA (poly(methyl methacrylate)) for dielectric studies.
• Preparation of AMBF₃ (ammoniomethyltrifluoroborate)-conjugated biomolecules.
• Sample preparation for GC-MS (Gas Chromatography-Mass Spectrometry) analysis.
• Preparation of ammonium acetate solvent mixture in combination with isopropanol, acetonitrile and water for mass spectral analysis of neutral lipids.
• Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC and spectrophotometry.
• As an extractant for 2,2-dithioethyl-4-(2′-pyridyl)-4-butyro-γ-lactone.

Meets ACS specifications

Notes préparatoires

Product filtered through a 0.2 μm filter

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H315,H319,H336,H351
• Conseils de prudence: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Central nervous system
• Code de la classe de stockage: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): does not flash
• Point d'éclair (°C): does not flash
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves