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Impurities content (weight %) | |
---|---|
Aluminum (Al3+) | <0.0003 |
Iron (Fe2+) | <0.0003 |
Potassium (K+) | <0.0003 |
Calcium (Ca2+) | <0.0003 |
Silicon (SiO2) | <0.003 |
Magnesium (Mg2+) | <0.0003 |
Copper (Cu2+) | <0.0003 |
Sodium (Na+) | <0.0003 |
Lead (Pb2+) | <0.0003 |