CAS Number
67-56-1
Formula
CH3OH
Weight
32,04
Carbinol, Methyl Alcohol
1l~0,792kg 1kg~1,263l
| Minimum assay (G.C.) | 99,9 % |
| Density at 20/4 | 0,791-0,792 |
| Maximum limit of impurities | |
| APHA colour | 10 |
| Insoluble matter in H2O | passes test |
| Non-volatile matter | 0,0005 % |
| Acidity | 0,0002 meq/g |
| Alkalinity | 0,0002 meq/g |
| Water (H2O) | 0,03 % |
| Reducing substance to KMnO4 | passes test |
| Darkened substances by H2SO4 | passes test |
| Carbonyl compounds (as acetone, as formaldehyde and as acetaldehyde) | 0.001% |
| Suitability for gradient according to ACS | passes test |
| Base line drift (235 nm) | 15 mUA |
| Suitability for IR spectrometry | passes test |
| Gradient at 235 nm | 2 mUA |
| Gradient at 254 nm | 1 mUA |
| Fluorescence at 254 nm (as quinine | 1ppb |
| Fluorescence at 365nm (as quinine | 1ppb |
| UV Spectrum (1cm cell; Ref.: water) | ≥10% |
| Transmittance at 205 (Cut off) nm | ≥30% |
| Transmittance at 210 nm | ≥30% |
| Transmittance at 220 nm | ≥55% |
| Transmittance at 210 nmTransmittance at 230 nm | ≥55% |
| Transmittance at 240 nm | ≥90% |
| Transmittance at 260-400 nm | ≥98% |
| Data of interest in HPLC | |
| Rohrschneider Polarity | 5.1 |
| Eluotropic value E° (Al2O3) | 0.95 |
| Sol. H2O in solv. at 20°C | miscible |
| For critical jobs, purge with nitrogen. | |
| Microfiltered product (0.2 μm) and bottled under nitrogen atmosphere. |
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