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Gruppe:
Chemikalien
Untergruppe:
Lösungsmittel für UV IR HPLC,Dimethylsulfoxid
Artikel:
Dimethylsulfoxid für UV, IR, HPLC, GPCDimethyl Sulfoxide for UV, IR, HPLC, GPCLaborbedarf,Lösungsmittel,Dimethylsulfoxid
Bezeichnung:
CAS: 67-68-5
HS 29309099
Melting Point: 18.4 °C
Boiling Point: 189 °C
Density: 1.103 kg/l
Refractive Index: 20/D 1.477
Physical Description: liquid
Specifications: Minimumassay(G.C.):99.9%
Maximumlimit of impurities
APHA colour: 10
Acidity: 0.0005 meq/g
Alkalinity: 0.0002 meq/g
Non-volatile matter: 0.001 %
Water (H2O): 0.05 %
Suitability for IR spectrometry: passes test
Fluorescence at 365 nm (as quinine): 7 ppb
UV Spectrum (1cm cell, Ref.: water):
Transmittance at 265 (Cut off) nm: ?10%
Transmittance at 270 nm: ?30%
Transmittance at 280 nm: ?63%
Transmittance at 290 nm: ?70%
Transmittance at 310 nm: ?80%
Transmittance at 330 nm: ?94%
Transmittance at 350-450 nm: ?98%
Data of interest in HPLC:
Rohrschneider Polarity: 7.2
Eluotropic value E° (Al2O3): 0.75
Sol. H2O in solv. at 20°C: miscible
For critical jobs, purge with nitrogen.
Microfiltered product (0.2 ?m) and bottled under nitrogen atmosphere.
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