Cas号 7439-91-0 分子式 La 分子量 138.91 别名 Lanthan 性状 金属锭子或粉末 质量标准 稀土含量RE ,% ≥99.5 稀土纯度La/RE ,% ≥99.99 镧稀土杂质RE impurities. ppm : (Ce+Pr+Nd+Sm+Y)/RE ≤100 非稀土杂质Non-RE impurities . ppm : Fe ≤200 Si ≤200 Al ≤500 Ca ≤100 Mg ≤100 C ≤200 Mo ≤200 O ≤300 项目 镧锭,99.5% 外观Appearance grey ingots ICP: Confirms Lanthanum Component Confirmed 痕量稀土分析Trace Rare Earth Analysis ≤2000.0 ppm 纯度Purity(Based On Rare Earth Analysis) ≥99.5 % 项目 99.99% metals basis ICP Major Analysis Confirms Lanthanum Component 稀土杂质Trace Rare Earth Analysis ≤200.0 ppm 纯度Purity ≥99.99% Based On Rare Earth Analysis