Abstract—

An yttrium ammonium carbonate with the composition NH₄Y(CO₃)₂ ∙ H₂O has been prepared by reacting hydrated yttrium oxide with ammonium carbonate at 80°C. The synthesis process has been shown to proceed through crystallization of two intermediate phases: yttrium ammonium hydroxycarbonates differing in composition. The synthesized compounds have been characterized by X-ray diffraction, IR spectroscopy, differential scanning calorimetry, thermogravimetry, and chemical analysis. The first X-ray diffraction characteristics of NH₄Y(CO₃)₂ ∙ H₂O and crystallographic data for its unit cell have been presented. Thermal decomposition of the yttrium ammonium carbonate has been shown to yield cubic yttrium oxide in the form of fine powder.

中文翻译：

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碳酸钇铵的合成及性能

摘要-

通过使水合氧化钇与碳酸铵在80°C下反应，制备了组成为NH ₄ Y（CO ₃）₂ ∙H ₂ O的碳酸钇铵。已显示合成过程是通过两个中间阶段的结晶进行的：组成不同的羟基碳酸钇铵。合成的化合物已通过X射线衍射，IR光谱，差示扫描量热法，热重分析和化学分析进行了表征。NH ₄ Y（CO ₃）₂ ∙H ₂的首次X射线衍射特性已经给出了其晶胞的O和晶体学数据。已显示碳酸钇铵的热分解产生细粉形式的立方氧化钇。