Ethanol absolute 2.5 litter for UV, IR, HPLC Un1170

Ethanol absolute for UV, IR, HPLC

Bottle size 2.5 litter 

Specifications:

Minimum assay (GC) (v/v): 99.9%

Density 20/4: 0.789-0.790

Maximum limit of impurities APHA

colour: 10 Acidity: 0.0002 meq/g

Alkalinity: 0.0002 meq/g

Non-volatile matter: 0.0003 % Water ( H2O): 0.1 %

Suitability for IR spectrometry:: passes test Fluorescence at 254 nm (as quinine): 2 ppb Fluorescence at 365 nm (as quinine): 1 ppb UV Spectrum (1cm cell; Ref.: water): Transmittance at 205 (Cut off) nm: ≥10 % Transmittance at 210 nm: ≥35% Transmittance at 220 nm: ≥55% Transmittance at 235 nm: ≥80% Transmittance at 245 nm: ≥90% Transmittance at 270-400 nm: ≥98%

Data of interest in HPLC: Rohrschneider

Polarity: 4.3 Eluotropic value e° (Al2O3): 0.88 Sol. H2O in solv. at 20°C:

miscible For critical jobs,

purge with nitrogen.

Microfiltered product (0.2 μm) and bottled under nitrogen atmosphere