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Appearance
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Yellowish brown to reddish brown amorphous powder, having slight characteristic odour. Its solution is acidic to litmus.
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Solubility
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Soluble in water and alcohol, practically insoluble in chloroform, in ether, in solvent hexane and in acetone
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Identification as per USP
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Complies
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Heavy metal
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Max 20 ppm
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Residue on ignition
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Max 0.025%
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Loss on drying
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Max 8.0% w/w
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Nitrogen content (on dried basis)
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9.5 to 11.5%
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Iodide ion (on dried basis)
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Max 6.6% w/w
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Assay (as available iodine, on dried basis)
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9.0 to 12.0% w/w
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