CASR |
: | ------ |
Molecular Formula |
: | ------ |
Molecular Weight |
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Specifications | |
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Appearance/Description: | Clear, colorless, volatile, hygroscopic liquid and having a characteristic odor. |
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 – 1.330 |
Appearance: | Solution should be clear and colorless. |
Acidity or Alkalinity: | NMT 0.9 mL of 0.01M sodium hydroxide should require to change the color of the indicator to pink. |
Alkalinity (as ammonia): | NMT 0.20 mL of 0.020 N sulfuric acid is required to produce a pink color (3 ppm) |
Relative density (20°C): | 0.791 – 0.793 |
UV absorbance profile (10mm cell) at 230nm: | NMT 0.15 |
UV absorbance profile (10mm cell) at 250nm: | NMT 0.05 |
UV absorbance profile (10mm cell) at 270nm: | NMT 0.02 |
UV absorbance profile (10mm cell) at 290nm: | NMT 0.01 |
Readily carbonizable substances: | No discoloration should develop. |
Readily oxidizable substances: | The pink color should not completely disappear within 5 min. |
Impurity A (Benzene): | NMT 2 ppm v/v |
Related substances (Any impurity): | NMT 0.1% |
Related substances (Total impurity): | NMT 0.3% |
Nonvolatile residue / Residue on evaporation: | NMT 0.001% w/w |
Water: | NMT 0.10% |
Assay: | NLT 99.5% |
Acetone and Aldehyde (as acetone): | Any turbidity produced in the Sample solution is not greater than that produced in the Standard solution (NMT 0.003%). |