title: Appropriate solvent NaVO3 for composition analysis of LiNbO3 crystal using chemical method.
abstract: It is crucial to find an appropriate solvent for composition analysis of LiNbO(3) crystal by a chemical method, such as inductively coupled plasma atomic emission spectroscopy. We have comparatively studied several solvents for LiNbO(3) crystal, including HF acid, KHSO(4), B(2)O(3), LiBO(2), and NaVO(3). The results show that as the NaVO(3) is used as the solvent, the solubility of LiNbO(3) is as high as 1 g/g at 1000 °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 LiNbO(3) crystal by a chemical method. In contrast, the other solvents suffer from one problem or another. We conclude that NaVO(3) is an appropriate solvent for chemical analysis of LiNbO(3).
authors.affiliation: Department of Opto-electronics and Information Engineering, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, People's Republic of China. dlzhang@tju.edu.cn
authors.forename: De-Long
authors.initials: DL
authors.lastname: Zhang
authors.forename: Jian
authors.initials: J
authors.lastname: Gao
authors.forename: Ping-Rang
authors.initials: PR
authors.lastname: Hua
authors.forename: Dao-Yin
authors.initials: DY
authors.lastname: Yu
authors.forename: Edwin Yue-Bun
authors.initials: EY
authors.lastname: Pun