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| Customization: | Available |
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| CAS No.: | 7757-82-6 |
| Formula: | Na2so4 |
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Na2so4 Sodium sulphate anhydrous 99% sodium sulfate
Sodium sulfate is classified into three categories based on its industrial applications. Class I, the highest grade, is used in applications such as batteries, optical glass, printing and dyeing, synthetic detergents, vinyl, and fiber production. Class II is primarily used in industries like common glass, dyes, and paper manufacturing. Class III is mainly utilized in inorganic salt and other industrial raw materials.
The industrial anhydrous sodium sulfate appears as white crystalline granules.
| project | index | |||||
| Category I | Category II | Category III | ||||
| Superior products | First-class products | First-class products | Qualified products | First-class products | Qualified products | |
| Sodium sulfate (Na2SO4)w/% | 99.6 | 99.0 | 98.0 | 97.0 | 95.0 | 92.0 |
| Water insoluble matter w/% | 0.005 | 0.05 | 0.10 | 0.20 | / | / |
| Calcium and magnesium (calculated as Mg) w/% ≤ | / | 0.15 | 0.30 | 0.40 | 0.6 | / |
| Calcium (Ca) w/% | 0.01 | / | / | / | / | / |
| Magnesium (Mg) w/% | 0.01 | / | / | / | / | / |
| Chloride (as CI) w/% | 0.05 | 0.35 | 0.70 | 0.90 | 2.0 | / |
| Iron (Fe) w/% ≤ | 0.0005 | 0.002 | 0.010 | 0.040 | / | / |
| Water w/% | 0.05 | 0.20 | 0.5 | 1.0 | 1.5 | / |
| Whiteness(R457)/% ≥ | 88 | 82 | 82 | / | / | |
| pH (50 g/L aqueous solution, 25 ºC) | 6-8 | // | / | / | / | / |
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