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Appearance
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White solid or powder or crystals or flakes
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Assay (on anhydrous basis)
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99.5-100.5%
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Solubility
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Slightly soluble in water; soluble in boiling water, freely soluble in alcohol, in chloroform, and in ether, fatty oils.
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Identifications (as per IP, BP, USP)
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To comply the tests
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Melting point
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121 -123°C
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Appearance of solution
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To comply IP, BP test
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Readily carbonisable substance
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To comply IP, BP, USP test
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Readily oxidisable substance
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To comply IP, BP, USP test
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Halogenated compounds and halides
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Max 0.03%(complies IP test)
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Cinnamic acid
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To comply IP test
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Heavy metal (as Pb)
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Max 0.001%
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Arsenic (As)
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Max 0.0002%
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Sulphated ash
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Max 0.1%
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Residue on ignition
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Max 0.05%
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Water (H2O)
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Max 0.7%
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