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| Indicator Name | Food Grade | Industrial Grade |
| Character | White Crystalline Powder | White Crystalline Powder |
| Content | > 99 % | > 98.0 % |
| Chloride | < 0.05 % | < 0.05 % |
| Arsenic salt | < 3 PPM | < 3 PPM |
| Lead salt | < 10 PPM | < 10 PPM |
| Heavy Metals | < 20 PPM | < 20 PPM |
| Sulfate SO4 | < 0.05 % | < 0.05 % |
| Reducing Substance | < 0.5 % | < 0.5 % |
| Loss on Drying | < 1.0 % | < 1.5 % |



