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Impurities content (weight %) | |
---|---|
Residue after calcination in the form of sulfates | <0.05 |
Humidity | <0.5 |
Oxalates (C2O42-) | <0.01 |
Sulfates (SO42-) | <0.015 |
Aluminum (Al3+) | <0.00002 |
Calcium (Ca2+) | <0.02 |
Arsenic (As3+) | <0.0001 |
Mercury (Hg2+) | <0,0001 |
Lead (Pb2+) | <0,0001 |
Heavy metals (Pb2+) | <0.0002 |
Bacterial contamination | < 0,5 МЕ/мг |