CASR |
: | 67-56-1 |
Molecular Formula |
: | CH3OH |
Molecular Weight |
: | 32.04 |
| Specifications | |
|---|---|
| Appearance: | Clear, colourless, volatile, hygroscopic liquid. |
| Solubility: | Miscible with water and with methylene chloride. |
| Boiling point: | About 64°C |
| Identification A (By Refractive index, 20±0.5°C): | 1.328 to 1.330 |
| Identification B (By IR): | IR spectra of the sample should be concomitant with reference spectrum of methanol |
| Acidity or alkalinity: | Not more than 0.9ml of 0.01M sodium hydroxide is required to change the colour of the indicator to pink. |
| Relative density (20°C): | 0.791 to 0.793 |
| UV absorbance profile (10mm cell) at 230nm: | 0.15 max |
| UV absorbance profile (10mm cell) at 250nm: | 0.05 max |
| UV absorbance profile (10mm cell) at 270nm: | 0.02 max |
| UV absorbance profile (10mm cell) at 290nm: | 0.01 max |
| Impurity A (Benzene): | 2ppm v/v max |
| Related substances (Any impurity): | 0.1% max |
| Related substances (Total impurity): | 0.3% max |
| Reducing substances: | The pink color should not be completely discharge within 5 min. |
| Residue on evaporation: | 10ppm max |
| Water: | 0.1% max |
