***,六水250元/kgCas号13494-98-9分子式YN3O9·6H2O；Y(NO3)3·6H2O分子量383.01别名***六水合物质量标准外观Appearance白色结晶或结晶粉末X-射线衍射分析X-RayDiffractionConformstoStructure纯度Purity≥99.9%BasedOnRareEarthAnalysisofICP钇Y22.9-25.8%(ComplexiometricEDTA)ICP:ConfirmsYttriumComponentConfirmed痕量金属分析TraceMetalAnalysis≤2000ppmbyICPAtomicemission)