Methyl alcohol USP-NF 2.5LT Go Back


: 67-56-1

Molecular Formula


Molecular Weight

: 32.04
Description: Clear,colourless liquid, having a characteristic odor. Is flammable.
Solubility: Miscible with water, with alcohol, with ether, with benzene and with most other organic solvents.
Identification A (by IR): IR spectra of the sample should be concomitant with reference spectrum of methanol
Identification B (by Chromatogram): The retention time of the major peak of the sample solution corresponds to that of the standard solution as obtained in the assay.
Assay: NLT 99.5%
Non-volatile Residue: NMT 0.001% w/w
Acetone and Aldehyde (as acetone): NMT 0.003%
Readily carbonizable substances: No discoloration develops.
Readily oxidizable substances: The pink color should not be completely disappear within 5 min.
Acidity: NMT 0.45ml of 0.020 N sodium hydroxide is required to produce a pink color.
Alkalinity (as ammonia): NMT 0.20 mL of 0.020 N sulfuric acid is required to produce a pink color (3 ppm)
Water: NMT 0.1%
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