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Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.002 |
Acidity (HF) | No acidity |
Alkalinity (KOH) | <0.05 |
Silicon (SiF62-) | <0.005 |
Sulfates (SO42-) | <0.005 |
Chlorides (Cl-) | <0.002 |
Iron (Fe2+) | <0.0005 |
Lead + Manganese + Copper (Pb2++Mn2++Cu2+) | <0.0005 |