氧化镧为白色或淡灰色粉末，化学性质活泼，易吸潮，具有良好的光学和催化性能，广泛用于光学玻璃、陶瓷添加剂、催化剂、荧光材料及电子陶瓷等领域。
Lanthanum Oxide is a white or grayish powder, chemically active and hygroscopic, with good optical and catalytic properties. It is widely used in optical glasses, ceramic additives, catalysts, phosphors and electronic ceramics.
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