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Appearance
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White to Light Yellow powder
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Assay (as carboxylic acid groups (COOH); on anhydrous basis)
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19.0 - 25.0%
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Identification
|
Passes test
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pH (3% solution in water)
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1.5 - 3.5
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Arsenic (As)
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Max 0.0005%
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Heavy metal (as Pb)
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Max 0.004%
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Acid value (mg KOH/gm)
|
Min 230.0
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Total ash
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Max 4.0%
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Loss on drying (at 105°C; 4 hrs)
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Max 15.0%
|
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Microbial contamination
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1 gm is free from Escherichia.coli and 10 g is free from salmonellae
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