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REimpurities.ppm:(Ce+Pr+Nd+***+Y)/RE≤100非稀土杂质Non-REimpurities.ppm:Fe≤200Si≤200Al≤500Ca≤100Mg≤100C≤200Mo≤200O≤300项目镧锭,99.5%外观AppearancegreyingotsICP:ConfirmsLanthanumComponentConfirmed痕量稀土分析TraceRareEarthAnalysis≤2000.0ppm纯度Purity(BasedOnRareEarthAnalysis)≥99.5%项目99.99%metalsbasisICPMajorAnalysisConfirmsLanthanumComponent稀土杂质TraceRareEarthAnalysis≤200.0ppm纯度Purity≥99.99%BasedOnRareEarthAnalysis)