Cas号 1312-81-8 分子式 La2O3 分子量 325.84 别名 Lanthanum(III) oxide 性状 白色无定形粉末 质量标准 99.999% metals basis: 外观Appearance White Powder X-射线衍射分析X-Ray Diffraction Conforms to standard 纯度Purity ≥99.99% Based on Trace Metals Impurities of ICP ICP Assay Confirms Lanthanum component 痕量稀土分析rare earth impurities ≤20ppm by ICP Atomic 。