| CAS No.: | 151-21-3 |
|---|---|
| EINECS: | 205-788-1 |
| Certification: | CCIC, CIQ, RoHS, ISO |
| Purity: | 90%~99% |
| Type: | Sodium Sulfate |
| Appearance: | Powder |
| Samples: |
|---|
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| Item | Specification (Standard: GB/T15963-1995 ) | |||
| Appearance | White Powder Form | White Needle Form | Clear, light yellow Liquid 1# | Clear, light yellow Liquid 2# |
| Active ingredient (%) | ≥92, 93, 95 | ≥92, 93, 95 | Total Solid matter(%) ≥28 | Total Solid matter(%) ≥35 |
| Petroleumether soluble substances (%) | ≤1.5 | ≤1.5 | ≤0.5 | ≤0.3 |
| Inorganic salts (NaCl+Na2SO4) (%) | ≤5.5, 4.5, 2.5 | ≤5.5, 4.5, 2.5 | ≤2.0 | ≤2.0 |
| Water (%) | ≤2.5 | ≤3.5 | - | - |
| pH (1% aq. Solution 25°C) | 7.5~9.5 | 7.5~9.5 | 7.5~9.5 | 7.5~9.5 |
| Whiteness (WG) | ≥90 | ≥90 | - | - |
| Color (Hazen, 5% a.m. solution) | - | - | ≤50 | ≤50 |
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