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Appearance
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Heavy, grayish-black plates or granules, having a metallic luster and a characteristic odor
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Assay (iodometric)
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99.8 - 100.5%
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Identifications
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To comply IP, BP, USP
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Solubility
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Very slightly soluble in water; freely soluble in carbon disulfide, in chloroform, in carbon tetrachloride, and in ether; soluble in alcohol and in solutions of iodides; sparingly soluble in glycerin.
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Non-volatile matter (at 105°C)
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Max 0.005%
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Chlorine and bromine (as Cl)
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Max 0.005%
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Sulphate (SO4)
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Max 0.002%
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