1.06048

Dichlorométhane

for spectroscopy Uvasol^®

• Synonyme(s) : Chlorure de méthylène
• Formule empirique (notation de Hill): CH₂Cl₂
• Numéro CAS: 75-09-2
• Poids moléculaire : 84.93
• Beilstein: 1730800
• Numéro MDL: MFCD00000881
• Numéro de classement CE : 200-838-9

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)
• Essai: ≥99.9% (GC)
• Forme: liquid
• Température d'inflammation spontanée: 1223 °F; 605 °C (DIN 51794)
• Puissance: 1600 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• Contient: ~50 ppm 2-methyl-2-butene as stabilizer
• Limite d'explosivité: 22 %
• Technique(s): UV/Vis spectroscopy: suitable
• Impuretés: ≤0.0002 meq/g Acidity; ≤0.0002 meq/g Alkalinity; ≤0.01% Water
• Résidus d'évap.: ≤0.0002%
• Couleur: APHA: ≤10
• Transmittance: 235 nm, ≥30%; 240 nm, ≥70%; 245 nm, ≥85%; 250 nm, ≥95%; 255 nm, ≥98%
• Indice de réfraction: n20/D 1.424 (lit.)
• pH: 7 (20 °C)
• pb: 39.8-40 °C (lit.)
• Pf: -95 °C; −95 °C (lit.)
• Densité: 1.325 g/mL at 25 °C (lit.)
• Absorption UV: λ: 235 nm A_max: ≤0.52; λ: 240 nm A_max: ≤0.16; λ: 245 nm A_max: ≤0.07; λ: 250 nm A_max: ≤0.02; λ: 255 nm A_max: ≤0.01
• Température de stockage: 2-30°C
• Chaîne SMILES: ClCCl
• InChI: 1S/CH2Cl2/c2-1-3/h1H2
• Clé InChI: YMWUJEATGCHHMB-UHFFFAOYSA-N

Description

Description générale

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol<TMSYMBOL></TMSYMBOL> solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol<TMSYMBOL></TMSYMBOL> solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.

Remarque sur l'analyse

Evaporation Number: 1.9

Purity (GC): ≥ 99.9 %
Evaporation residue: ≤ 0.0002 %
Water: ≤ 0.01 %
Color: ≤ 10 Hazen
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb
Fluorescence (as quinine at 365 nm): ≤ 1.0 ppb
Transmission (at 235 nm): ≥ 30 %
Transmission (at 240 nm): ≥ 70 %
Transmission (at 245 nm): ≥ 85 %
Transmission (at 250 nm): ≥ 95 %
Transmission (from 255 nm): ≥ 98 %
Absorbance (at 235 nm): ≤ 0.52
Absorbance (at 240 nm): ≤ 0.16
Absorbance (at 245 nm): ≤ 0.07
Absorbance (at 250 nm): ≤ 0.02
Absorbance (from 255 nm): ≤ 0.01
The product is stabilized with about 50 ppm 2-Methyl-2-butene
Meet the requirements of "Specific use spectroscopy" according ACS

Informations légales

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS07,GHS08
• 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