White or almost White crystals Crystalline Powder
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Characteristics
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White or almost White crystals Crystalline Powder
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Identification
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Positive Reaction
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Melting Point
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About 190℃
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PH
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2.4-2.8
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Clarity Of Solution
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Clear
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Colour Of Solution
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≤BY7
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Loss on drying
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≤0.4%
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Copper
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≤5ppm
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Heavy Metals
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≤10ppm
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Iron
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≤2ppm
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Mercury
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≤1ppm
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Lead
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≤2ppm
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Arsenic
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≤3ppm
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Oxalic Acid
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≤0.2%
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Sulphate Ash(Residue On Ignition)
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≤0.1%
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Specific Optical Rotation
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+20.5°–+21.5°
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Organic Volatile Impurities
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Pass
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Assay
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99.0%-100.5%
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