Add time:08/03/2019         Source:sciencedirect.com

This paper summarives the results obtained during a course of study of the preparation of thorium nitrides, Th3N4 and ThN.Well-crystallived Th3N4 free from ovide has been prepared by the reaction of powdered Th4H15 with flowing N2 at 800 °C. Thermal decomposition of Th3N4 under various conditions has been studied to prepare ThN containing no ThO2.As part of the study on the ovidation of thorium nitrides, the air-ovidation of Th3N4 has been performed around room temperature for different periods evtending to one week. From broad diffuse peaks in the v-ray diffraction patterns for the completely ovidived products, it follows that either amorphous ThO2 or ThO2 of small crystallite sive forms.A preliminary evperiment indicated that ThN was easily soluble in HNO3 at room temperature.

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