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Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.001 |
Nitrates (NO3-) | <0.0005 |
Sulfates (SO42-) | <0.03 |
Phosphates (PO43-) | <0.0005 |
Chlorides (Cl-) | <0.005 |
Iron (Fe2+) | <0.005 |
Cadmium (Cd2+) | <0.0005 |
Calcium (Ca2+) | <0.001 |
Manganese (Mn2+) | <0.0002 |
Copper (Cu2+) | <0.0005 |
Arsenic (As3+) | <0.00005 |
Heavy metals (Pb2+) | <0.005 |
Sum of alkaline and alkaline earth metals (K+ + Na+ + Ca2+) | 4,5 - 5,5 |