439223

Diclorometano

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

• Sinonimo/i: Cloruro di metilene
• Formula empirica (notazione di Hill): CH₂Cl₂
• Numero CAS: 75-09-2
• Peso molecolare: 84.93
• Beilstein: 1730800
• Numero CE: 200-838-9
• Numero MDL: MFCD00000881
• Codice UNSPSC: 12190000
• ID PubChem: 24867491
• NACRES: NA.21

Proprietà

• Densità del vapore: 2.9 (vs air)
• Livello qualitativo: 100
• Tensione di vapore: 24.45 psi ( 55 °C); 6.83 psi ( 20 °C)
• Saggio: ≥99.9%
• Forma fisica: liquid
• Temp. autoaccensione: 1223 °F
• contiene: 40-150 ppm amylene as stabilizer
• Limite di esplosione: 22 %
• tecniche: HPLC: suitable
• Impurezze: Free halogens, passes test; ≤0.0003 meq/g Titr. acid; ≤0.02% water
• Residuo dopo evaporazione: <0.0003%
• Colore: APHA: ≤10; clear
• Indice di rifrazione: n20/D 1.424 (lit.)
• P. eboll.: 39.8-40 °C (lit.)
• Punto di fusione: −95 °C (lit.)
• Densità: 1.325 g/mL at 25 °C (lit.)
• λ: H₂O reference
• Assorbanza 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
• Compatibilità: passes test for HPLC
• Stringa SMILE: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2; YMWUJEATGCHHMB-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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

Nota sulla preparazione

Product filtered through a 0.2 μm filter

Informazioni sulla sicurezza

• Pittogrammi: GHS08,GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H315,H319,H336,H351
• Consigli di prudenza: P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Classi di pericolo: Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organi bersaglio: Central nervous system
• Codice della classe di stoccaggio: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): does not flash
• Punto d’infiammabilità (°C): does not flash
• Dispositivi di protezione individuale: Eyeshields, Faceshields, Gloves