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Citation: Jing Xiaoyan, Hong Guangyan, Li Youmo. PREPARATION OF ULTRAFINE POWDERS OF RARE EARTH COMPOUNDS BY ALCOXIDE METHOD[J]. Chinese Journal of Applied Chemistry, ;1990, 7(2): 92-94. shu

PREPARATION OF ULTRAFINE POWDERS OF RARE EARTH COMPOUNDS BY ALCOXIDE METHOD

1.
Changchun Institute of Applied Chemistry, Academia Sinica, Changchum 130022

Received Date: 22 July 1989
Available Online: 3 November 1989

Ultrafine powders of hydroxides and oxides of thirteen rare earths have been prapared by alcoxide method. The size of the powder particle was less than 0.05μm by TEM observa-tion. The powders obtained from Jight rare earths are different in shapes from those from heavy rare earths and are easier to be dispersed. XRD determination showed that the ultra-fine powders of some rare earth hydroxides are crystalline, while the powders of the oxides are all crystalline.
- hydroxide of rare earth,
- oxide of rare rare earth,
- ultrafine powder,
- preparation
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