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Appearance
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A white crystalline or granular powder or flakes;hygroscopic
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Solubility
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Freely soluble in water, sparingly soluble in ethanol (95%)
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Identification 'A', 'B' & 'C'
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Passes IP test
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Appearance of solution
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10%w/v solution in water should be clear
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Acidity or alkalinity
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Not more than 0.2 ml of 0.1M HCl or 0.2 ml of 0.1M NaOH should be required to change the colour of the solution
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Arsenic (As)
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NMT 2 ppm
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Chlorinated compounds
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Passes IP test
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Loss on drying (at 105°C)
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Max 2.0%
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Assay (by HPLC; on dried basis)
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99.0 - 101.0%
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