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|
Appearance |
White powder , taste bitter ,without stink |
|
Specific optical rotation |
+57 ° ~+62 ° |
|
Melting point |
200 °C ~ 205°C |
|
Moisture |
≤ 1.0 % |
|
Blazing residue |
≤ 0.2 % |
|
Loss on drying |
≤ 0.5 % |
| Residue on ignition | ≤ 0.2 % |
|
Heavy mental |
≤ 20ppm |
|
Assay |
≥ 99.0 % |
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