***分子式：Pr(NO3)3?6H2O外观：绿色粒状结晶。用途：主要用作生产催化剂和其它镨化合物。项目规格分析仪器牌号Pr(NO3)3?6H2OPr(NO3)3?6H2OPr(NO3)3?6H2OPr(NO3)3?6H2OTREO(wt%)≥38.5-40.0≥38.5-40.0≥38.5-40.0≥38.5-40.0稀土相对纯度(wt%)La2O3/TREO≤0.03≤0.05≤0.003≤0.001ICP光谱仪CeO2/TREO≤0.025≤0.010≤0.005≤0.001Pr6O11/TREO≥99.0≥99.5≥99.9≥99.99Nd2O3/TREO≤0.025≤0.010≤0.005≤0.001***6O3/TREO≤0.02≤0.004≤0.004≤0.001Y2O3/TREO≤0.01≤0.001≤0.001≤0.001非稀土杂质含量(wt%)Fe2O3≤0.01≤0.01≤0.008≤0.0001原子吸收分光光度计CaO≤0.08≤0.10≤0.008≤0.0002CI-≤0.05≤0.05≤0.05≤0.0005SiO2≤0.03≤0.05≤0.02≤0.0002灼减L.O.I.≤3.0≤2.5≤2.5≤2说明：***溶于水，在潮湿的空气中易潮解。)