Customization: | Available |
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CAS No.: | 151-21-3 |
Certification: | ISO |
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Item | Specification | |||
Appearance | White Needle Form | |||
Active ingredient (%) | ≥92 | ≥93 | ≥95 | |
Petroleum ether soluble substances (%) | ≤1.5 | ≤1.5 | ≤1.5 | |
Inorganic salts (NaCl+Na2SO4) (%) | ≤4.5 | ≤3.5 | ≤2.0 | |
Water (%) | ≤2.5 | ≤2.5 | ≤2.5 | |
pH (1% aq. solution) | 7.5~ 9.5 |
7.5~ 9.5 |
7.5~ 9.5 |
|
Whiteness (WG) | ≥90 | ≥90 | ≥90 |