Customization: | Available |
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Storage Method: | Normal |
Extraction Process: | Chemical |
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INDEX | STANDARD |
Specific rotation | between -20.0°and -30.0° |
PH | between 5.5 and 7.5 ,in a solution |
Loss on drying | Dry it at 105° for 4 hours : it loses not more than 10.0% of its weight. |
Residue on ignition | between 20.0% and 30.0% ,on the dried basis. |
Chloride | not more than 0.50% is found |
Sulfate | not more than 0.24% |
Heavy metals | no more than 20ppm |