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Impurities content (weight %) | |
---|---|
Crystallization water | 62.8 - 63.8 |
Insoluble in water substances | <0.002 |
Total nitrogen (N) | <0.0005 |
Silicates (SiO32-) | <0.001 |
Sulfates (SO42-) | <0.001 |
Phosphates (PO43-) | <0.0003 |
Chlorides (Cl-) | <0.0005 |
Aluminum (Al3+) | <0.0005 |
Iron (Fe2+) | <0.0002 |
Calcium + Magnesium (Ca2+ + Mg2+) | <0.004 |
Arsenic (As3+) | <0.00001 |
Heavy metals (Pb2+) | <0.0002 |