镧 分子式：la(no3)3·6h2o 外观：无色粒状结晶。 用途：主要用作生产催化剂和其它镧化合物。 项目规格分析仪器牌号la(no3)3 ·6h2ola(no3)3 ·6h2ola(no3)3 ·6h2ola(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≥ 99.0≥ 99.5≥ 99.9≥ 99.99icp光谱仪 ceo2/treo≤ 0.03≤ 0.05≤0.003≤0.001pr6o11/treo≤0.025≤0.010≤0.005≤0.001nd2o3/treo≤0.025≤0.010≤0.005≤0.001sm6o3/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≤0.0005 sio2≤0.03≤0.05≤0.02≤0.0002 灼减l.o.i.≤3.0≤2.5≤2.5≤2