Appropriate Solvent NaVO3 for Composition Analysis of LiNbO3 Crystal Using Chemical Method

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• 作者：De-Long Zhang ; Jian Gao ; Ping-Rang Hua ; Dao-Yin Yu ; Edwin Yue-Bun Pun
• 刊名：Analytical Chemistry
• 出版年：2013
• 出版时间：February 5, 2013
• 年：2013
• 卷：85
• 期：3
• 页码：1940-1944
• 全文大小：211K
• 年卷期：v.85,no.3(February 5, 2013)
• ISSN：1520-6882

文摘

It is crucial to find an appropriate solvent for composition analysis of LiNbO₃ crystal by a chemical method, such as inductively coupled plasma atomic emission spectroscopy. We have comparatively studied several solvents for LiNbO₃ crystal, including HF acid, KHSO₄, B₂O₃, LiBO₂, and NaVO₃. The results show that as the NaVO₃ is used as the solvent, the solubility of LiNbO₃ is as high as 1 g/g at 1000 掳C. The dissolving is quite fast. Neither solute nor solvent is lost from the melting during the dissolving procedure. A clear high-concentration solution is obtained. Moreover, it is verified experimentally that such a solution is valid for composition analysis of LiNbO₃ crystal by a chemical method. In contrast, the other solvents suffer from one problem or another. We conclude that NaVO₃ is an appropriate solvent for chemical analysis of LiNbO₃.