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Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.001 |
Dysprosium (Dy3+) | <0.002 |
Praseodymium (Pr3+) | <0.005 |
Samarium (Sm3+) | <0.002 |
Cerium (Ce3+) | <0.005 |
Erbium (Er3+) | <0.002 |
Iron (Fe2+) | <0.001 |
Calcium (Ca2+) | <0.01 |
Cobalt (Co2+) | <0.0001 |
Manganese (Mn2+) | <0.0001 |
Copper (Cu2+) | <0.0001 |
Nickel (Ni2+) | <0.0001 |