A Novel Method for the Synthesis of Rare Earth Carbonates

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI:10.1081/SIM-200026601

M. Refat

引用次数: 15

Abstract

Abstract The rare earth carbonates, M2(CO3)3 · xH2O, of Pr(III), Nd(III), Eu(III), Gd(III), Tb(III), Dy(III), Ho(III), Er(III), Tm(III), and Yb(III) have been synthesized by a novel synthetic method involving the reaction of aqueous solutions of the lanthanide(III) chloride with urea at ∼90 °C. A study of the infrared (IR) absorption spectra (400–4000 cm−1) of the formed products clearly indicates the absence of bands due to urea and shows the characteristic bands of carbonate ion. A general mechanism describing the formation of lanthanide(III) carbonates, M2(CO3)3 · xH2O, is suggested.

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合成稀土碳酸盐的新方法

摘要采用镧系(III)氯溶液与尿素在~ 90℃下反应的新合成方法，合成了Pr(III)、Nd(III)、Eu(III)、Gd(III)、Tb(III)、Dy(III)、Ho(III)、Er(III)、Tm(III)和Yb(III)的稀土碳酸盐M2(CO3)3·xH2O。对产物的红外吸收光谱(400 ~ 4000 cm−1)进行了研究，结果表明产物中没有尿素引起的能带，并显示出碳酸盐离子的特征能带。提出了一种描述镧系(III)碳酸盐M2(CO3)3·xH2O形成的一般机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Synthesis and Reactivity in Inorganic and Metal-organic Chemistry

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