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| Item | Super-fine | Standard |
| Na2SO4 % min | 99 | 99 |
| Non-soluble in water% max | 0.1 | 0.1 |
| CaSO4 %max | 0.1 | |
| NaC1 % max | 0.003 | 0.002 |
| MgSO4 % max | 0.5 | |
| Moisture % max | 0.1 | |
| PH | 6-8 | 6-8 |
| Size:1-60mesh | 90 |
TEL：+86 10 64640086
Fax：86-10-84552201 84512245
Mail:grc@grand-resources.com.cn
Address：Beijing Office Rm.1810 Golden Land Building.No.32 Liang Ma Qiao Road. Chaoyang District,Beijing 100016 China
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