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Calcium tungstate, 99.99% (extra pure)
Impurities content (weight %) | |
---|---|
Iron (Fe2+) | <0.001 |
Cobalt (Co2+) | <0.0005 |
Manganese (Mn2+) | <0.0005 |
Copper (Cu2+) | <0.0005 |
Nickel (Ni2+) | <0.0005 |