CASR |
: | 67-56-1 |
Molecular Formula |
: | CH3OH |
Molecular Weight |
: | 32.04 |
| Specifications | |
|---|---|
| Appearance: | Clear, colorless, volatile, hygroscopic liquid . |
| Solubility: | Miscible with water, with alcohol, with ether, with benzene, with methylene chloride and with most other organic solvents. |
| Boiling point: | About 64°C |
| Identification (By IR): | IR spectra of the sample should be concomitant with reference spectrum of methanol . |
| Identification by chromatogram: | The retention time of the major peak of the sample solution corresponds to that of the standard solution. |
| Identification (By Refractive index, 20±0.5°C): | 1.328 to 1.330 |
| Acidity or alkalinity: | NMT 0.9 mL of 0.01 M sodium hydroxide is required to change the color of the indicator to pink. |
| Alkalinity (as ammonia): | 3 ppm max |
| 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 |
| Readily carbonizable substances: | No discoloration should develop |
| Readily oxidizable substances: | The pink color should not be completely disappear within 5 min. |
| Impurity A (Benzene): | 2ppm v/v max |
| Related substances (Any impurity): | 0.1% max |
| Related substances (Total impurity): | 0.3% max |
| Non-volatile Residue: | NMT 0.001%w/w |
| Water: | NMT 0.1% |
| Assay: | NLT 99.5% |
| Acetone and Aldehyde (as acetone): | NMT 0.003% |
