Cas号12061-16-4分子式Er2O3分子量382.54外观AppearancePinkPowderX-射线衍射X-RayDiffractionConformstoStructure纯度Purity≥99.99%BasedOnRareEarthanalysisICPMajorAnalysisConfirmsHafniumcomponentComplexometricEDTA86.1-88.8%痕量稀土分析TraceRareEarthAnalysis≤200ppmbyICPAtomicemission)