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Appearance
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White granules or powder; odourless or· with slight put not unpleasant odour. The pentahydrate is somewhat efflorescent.
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Assay (as C6H10Ca06; on dried basis)
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98.0-102.0%
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Identification
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Passes IP test
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Acidity or alkalinity
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Passes IP test
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Arsenic (As)
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Max 0.0002%
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Heavy metal (as Pb)
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Max 0.002%
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Iron (Fe)
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Max 0.008%
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Chlorides
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Max 0.02%
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Sulphates
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Max 0.15%
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Reducing substance
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Passes IP test
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Loss on drying (at 120°C; 4 hrs)
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Max 30.0%
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