1 | Appearance | Clear, colorless, volatile, hygroscopic liquid | Clear, colorless, volatile, hygroscopic liquid . |
2 | Solubility | Complies | Miscible with water, with alcohol, with ether, with benzene, with methylene chloride and with most other organic solvents. |
3 | Boiling point | 64°C | About 64°C |
4 | Identification (By IR) | Complies | IR spectra of the sample should be concomitant with reference spectrum of methanol . |
5 | Identification by chromatogram | Complies | The retention time of the major peak of the sample solution corresponds to that of the standard solution. |
6 | Identification (By Refractive index, 20±0.5°C) | 1.329 | 1.328 to 1.330 |
7 | Acidity or alkalinity | Complies | NMT 0.9 mL of 0.01 M sodium hydroxide is required to change the color of the indicator to pink. |
8 | Alkalinity (as ammonia) | Complies | 3 ppm max |
9 | Relative density (20°C) | 0.792 | 0.791 to 0.793 |
10 | UV absorbance profile (10mm cell) at 230nm | 0.085 | 0.15 max |
11 | UV absorbance profile (10mm cell) at 250nm | 0.018 | 0.05 max |
12 | UV absorbance profile (10mm cell) at 270nm | 0.005 | 0.02 max |
13 | UV absorbance profile (10mm cell) at 290nm | 0.003 | 0.01 max |
14 | Readily carbonizable substances | Complies | No discoloration should develop |
15 | Readily oxidizable substances | Complies | The pink color should not be completely disappear within 5 min. |
16 | Impurity A (Benzene) | Not detected | 2ppm v/v max |
17 | Related substances (Any impurity) | 0.002% | 0.1% max |
18 | Related substances (Total impurity) | 0.01% | 0.3% max |
19 | Non-volatile Residue | 0.0008% | NMT 0.001%w/w |
20 | Water | 0.042% | NMT 0.1% |
21 | Assay | 99.8% | NLT 99.5% |
22 | Acetone and Aldehyde (as acetone) | Less than 0.003% | NMT 0.003% |