The purity 99.99% of scandium oxide(Sc 2O 3) was prepared from tungstenic slag with extraction process.
用萃取法矿渣得纯99.99%氧化钪。
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Scandium is an element which chemists usually ignore, I have never used scandium in any of my research.
化学家通常忽元素,从未任何研究中使用过。
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