Identification ：
Appearance ：
Appearance of solution:
pH:
Specific optical rotation:
Related substances:
Heavy metals:
Zinc.
Loss on drying:
Sulphated ash:
Assay:
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Conforms (As per EP5)
A white crystalline powder or
colourless crystals
Clear and colourless
2.0 to 2.8
+21.0° to +27.0°
Conforms (As per EP5)
≤10ppm
≤10ppm
≤1.0%
≤0.2%
98.0% to 101.0% , on dry
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