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Appearance
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White to off-white crystalline powder
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Infrared spectrum
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Conforms
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Assay (by HClO4 titration; on dried basis)
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99.0 to 101.0%
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Loss on drying
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Max 1.0%
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pH (1% w/v solution)
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4.5 to 6.5
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Solubility (10% in water)
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Clear colorless
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Melting point
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254 to 260°C
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