Diclorometano ≥99.9% stabilizzato, SPECTRONORM® per spettroscopia
Fornitore: VWR Chemicals
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Attenzione
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Synonyms:
Cloruro di metilene, Metilene cloruro
Stabilization:
stabilizzato con 2-metil-2-butene ∼ 50 ppm
Filtrato a 0,2 µm, confezionato sotto azoto
SPECTRONORM solvents have extensive specifications to meet the highly demanding requirements of UV applications.
Formula:
CH₂Cl₂ Peso molecolare: 84,93 g/mol Punto di ebollizione: 39,8 °C (1013 hPa) Punto di fusione: –95 °C Densità: 1,322 g/cm³ (20 °C) Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00000881 CAS Number: 75-09-2 EINECS: 200-838-9 UN: 1593 ADR: 6.1,III Merck Index: 12,06140 |
Risultati del test di specificazione
Assay (GC) | ≥ 99,9 % |
Acidity | ≤ 0,0002 meq/g |
Alkalinity | ≤ 0,0002 meq/g |
Colouration | ≤ 10 APHA |
Evaporation residue | ≤ 2 ppm |
Water | ≤ 100 ppm |
Absorbance (235 nm) | ≤ 0,52 |
Absorbance (240 nm) | ≤ 0,16 |
Absorbance (245 nm) | ≤ 0,07 |
Absorbance (250 nm) | ≤ 0,02 |
Absorbance (from 255 nm) | ≤ 0,01 |
Transmittance (235 nm) | ≥ 30 % |
Transmittance (240 nm) | ≥ 70 % |
Transmittance (245 nm) | ≥ 85 % |
Transmittance (250 nm) | ≥ 95 % |
Transmittance (from 255 nm) | ≥ 98 % |
Fluorescence (as quinine) (254 nm) | ≤ 1,0 ppb |
Fluorescence (as quinine) (365 nm) | ≤ 1,0 ppb |
Meets the requirements of "Specific use spectroscopy" according ACS |
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