Cas号54451-24-0分子式La2C3O9·xH2O；La2(CO3)3·xH2O分子量457.84(anhydrousbasis)别名Lanthanum(III)carbonatehydrate性状碳酸镧为白色粉未质量标准外观AppearanceWhitePowdertoCrystallinePowderX-射线衍射X-RayDiffractionConformstoStructure纯度Purity≥99.99%BasedonTraceMetalsImpuritiesICPMajorAnalysisConfirmsLaComponent镧LabyComplexiometricEDTA50%-60%总金属杂质totalmetallicimpurities≤200ppmbyICPAtomicemission)