Cas号14507-19-8分子式LaO3H3；La(OH)4·xH2O分子量189.93别名Lanthanum(III)hydroxide质量标准外观AppearanceWhitePowderX-射线衍射X-RayDiffractionConformstoStructure纯度Purity≥99.9%BasedonTraceMetalsImpuritiesICPMajorAnalysisConfirmsLanthanumcomponent痕量金属杂质totalmetallicimpurities≤2000.0ppm)