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Appearance
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A soft, white or faintly yellowish white amorphous powder, free from grittiness
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Assay
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99.0 - 100.5%
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Identification
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To pass IP test
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Substance insoluble in acid and carbonate
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To pass IP test
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Alkalinity
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To pass IP test
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Arsenic (As)
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Max. 0.0005%
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Iron (Fe)
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Max. 0.02%
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Lead (Pb) - as per IP
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To pass IP test
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Loss on ignition (at 500°C)
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Max. 1.0%
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