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Description
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Colourless, light crystals, scales or needles
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Solubility
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Freely soluble in ethanol (95%); in chloroform and in ether, soluble in fixed oils, boiling water and slightly soluble in water
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Identification
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-
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Identification 'A'
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Melting point: 121° to 124°
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Identification 'B'
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A 5.0 per cent w/v solution in ethanol (95 per cent) should give reaction (a) of benzoates
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Appearance of solution
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Solution should be clear and colorless
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Arsenic
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NMT 2 ppm
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Readily oxidisable substance
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NMT 0.5 ml of 0.1 M potassium permanganate should be required
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Readily carbonisable substance
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The color of the solution should not be more intense than that of reference solution YS5
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Cinnamic acid
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No odour of benzaldehyde should develop
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Chlorinated compounds
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The filtrate should complies with the limit tests for chlorides
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Sulphated ash
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NMT 0.1%
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Water
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NMT 0.7%
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Assay (on anhydrous basis)
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99.5% - 100.5%
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