Methanol gradient grade for liquid chromatography LiChrosolv® Reag. Ph Eur. CAS 67-56-1, chemical formula CH₃OH, molar mass 32.04 g/mol. Imbuteliat in recipiente din sticla. Producator Merck Purity (GC) ≥ 99.9 % Identity (IR) conforms Evaporation residue ≤ 2.0 mg/l Water ≤ 0.02 % Color ≤ 10 Hazen Density (d 20 °C/20 °C) 0.791 - 0.793 Boiling point 64 - 65 °C Acidity ≤ 0.0002 meq/g Alkalinity ≤ 0.0002 meq/g Gradient grade (at 235 nm) ≤ 2.0 mAU Gradient grade (at 254 nm) ≤ 1.0 mAU Fluorescence (as quinine at 254 nm) ≤ 1.0 ppb Fluorescence (as quinine at 365 nm) ≤ 0.5 ppb Transmission (at 210 nm) ≥ 20 % Transmission (at 220 nm) ≥ 60 % Transmission (at 230 nm) ≥ 75 % Transmission (at 235 nm) ≥ 83 % Transmission (at 250 nm) ≥ 95 % Transmission (from 260 nm) ≥ 98 % Absorbance (at 225 nm) ≤ 0.170, cu termen de valabilitate de minim 1 an, se livreaza cu Buletin de analiza de la producator pentru lotul aferent livrarii" 2.5 L 4 56.16 "Etanol 96 % EMSURE® Reag. Ph Eur. CAS 64-17-5. Assay (m/m): 92.6 - 95.2 % Assay (V/V): 95.1 - 96.9 %. Reziduu la evaporare: ≤ 25 mg/l. Producator Merck Millipore., cu termen de valabilitate de minim 1 an, se livreaza cu Buletin de analiza de la producator pentru lotul aferent livrarii" 2.5 L 2 281.18 Cloroform pentru analiza EMSURE® ACS,ISO,Reag. Ph Eur. CAS 67-66-3. Puritate (GC) : 99.0-99.4%. Reziduu la evaporare: >/-0.001%. Apa: