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Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.005 |
Lanthanum (La3+) | <0.0002 |
Neodymium (Nd3+) | <0.0002 |
Praseodymium (Pr3+) | <0.0002 |
Samarium (Sm3+) | <0.0002 |
Cerium (Ce3+) | <0.0002 |
Europium (Eu3+) | <0.0002 |
Gadolinium (Gd3+) | <0.0002 |
Terbium (Tb3+) | <0.0001 |
Dysprosium (Dy3+) | <0.0001 |
Holmium (Ho3+) | <0.0001 |
Erbium (Er3+) | <0.0001 |
Thulium (Tm3+) | <0.00005 |
Lutetium (Lu3+) | <0.00005 |
Yttrium (Y3+) | <0.0002 |
Sulfates (SO42-) | <0.01 |
Nitrates (NO3-) | <0.001 |
Calcium (Ca2+) | <0.001 |
Iron (Fe2+) | <0.002 |
Sodium + Potassium (Na++K+) | <0.01 |
Lead (Pb2+) | <0.0001 |
pH of 5% water solution | 5 - 6 |