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Impurities content (weight %) | |
---|---|
Insoluble in HCl substances + Silicates (SiO32-) | <0.1 |
Sulfates (SO42-) | <0.01 |
Chlorides (Cl-) | <0.005 |
Ammonium salts (NH4+) | <0.007 |
Iron (Fe2+) | <0.005 |
Cadmium (Cd2+) | <0.0005 |
Potassium + Sodium (K+ + Na+) | <0.04 |
Cobalt (Co2+) | <0.0001 |
Manganese (Mn2+) | <0.0005 |
Copper (Cu2+) | <0.0005 |
Nickel (Ni2+) | <0.0001 |
Lead (Pb2+) | <0.002 |
Zinc (Zn2+) | <0.0005 |