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1 |
Description |
A White Or Creamy-White Crystalline Powder. |
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2 |
Solubility |
Freely Soluble In Boiling Water And In Boiling Alcohol, Sparingly Soluble In Water And In Solutions Of Alkali Hydroxides And Carbonates; Practically Insoluble In Ether. |
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3 |
Identification |
Test A May Be Omitted If Tests B, C &D Are Carried Out. Tests B, C And D May Be Omitted If Tests A Is Carried Out. A. Determine By Infrared Absorption Spectrophotometry. Compare The Spectrum With That Obtained With Nicotinic Acid RS Or With The Reference Spectrum Of Nicotinic Acid. B. Heat A Small Quantity With Twice Its Weight Of Soda Lime; Pyridine Is Evolved. |
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4 |
Appearance Of Solution |
A 5% W/V Solution In Carbon Dioxide-Free Water Is Clear, And Not More Intensely Coloured That Reference Solution. |
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5 |
Chloride |
Not More Than 250 Ppm. |
|
6 |
Sulphate |
Not More Than 200 Ppm. |
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7 |
Related Substances |
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8 |
Sulphated Ash |
Not More Than 0.1% |
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9 |
Assay, W/W |
99.0 – 101.0% |
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10 |
Heavy Metals |
Not More Than 20 Ppm |