氧化镧
化学式：La2O3
性状外观：白色固体粉末，易吸水吸气，须存放在干燥处，不得露天放置，运输时严防淋雨受潮。
主要用途：制造精密光学玻璃、光导纤维。也用于电子工业作陶瓷电容器，压电陶瓷掺入剂。还用作制硼化镧的原料，石油分离精制催化剂等用
项目	规格				分析仪器
牌号	HL-La-A1	HL-La-B1	HL-La-C1	HL-La-D1
TREO(wt%)	≥99	≥99	≥99	≥99
稀土相对纯度RE(%)
La2O3/TREO	≥99.999%	≥99.99%	≥99.9%	≥99.5%	ICP 光谱仪
CeO2/TREO	≤0.0001	≤0.001	≤0.005	≤0.05
Pr6O11/TREO	≤0.0001	≤0.001	≤0.005	≤0.05
Nd2O3/TREO	≤0.0001	≤0.001	≤0.005	≤0.05
Sm2O3/TREO	≤0.0001	≤0.001	≤0.005	≤0.05
Eu2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Gd2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Tb4O7/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Dy2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Ho2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Er2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Tm2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Tb2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Lu2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
Y2O3/TREO	≤0.0001	≤0.0005	≤0.001	≤0.01
非稀土杂质含量(wt%)
Fe	≤0.0002	≤0.002	≤0.005	≤0.05	原子吸收分光光度计
Ca	≤0.001	≤0.005	≤0.02	≤0.05
Si	≤0.002	≤0.005	≤0.05	≤0.05
Al	≤0.005	≤0.005	≤0.005	≤0.01
Na	≤0.005	≤0.005	≤0.05	≤0.05
Mg	≤0.002	≤0.002	≤0.002	≤0.002
Cu	≤0.002	≤0.002	≤0.002	≤0.002
Cl	≤0.03	≤0.02	≤0.02	≤0.02
灼减L.O.I.	≤1.0	≤1.0	≤1.0	≤1.0