Metastable Phase Equilibrium of the Quinary Aqueous System Li+ + K+ + Cl鈥?/sup> + CO32鈥?/sup> + B4O72鈥?/sup> + H2O at 2
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- 作者：Ruilin Wang ; Ying Zeng
- 刊名：Journal of Chemical & Engineering Data
- 出版年：2014
- 出版时间：March 13, 2014
- 年：2014
- 卷：59
- 期：3
- 页码：903-911
- 全文大小：291K
- 年卷期：v.59,no.3(March 13, 2014)
- ISSN：1520-5134
文摘
The metastable phase equilibrium of the quinary aqueous system Li+ + K+ + Cl鈥?/sup> + CO32鈥?/sup> + B4O72鈥?/sup> + H2O was investigated at 273.15 K using an isothermal evaporation method. The solubilities and densities of the equilibrated solution were determined. Based on the experimental data, the space metastable phase diagram and the projected phase diagram saturated with salt Li2CO3 of the quinary system at 273.15 K were constructed. The projected phase diagram of this system consists of three invariant points, seven univariant curves, and five crystallization fields corresponding to the single salts LiCl路H2O, KCl, K2B4O7路4H2O, K2CO3路3/2H2O, and LiBO2路8H2O. Comparisons between the phase diagrams at 273.15 K and at 298.15 K show that the crystallization form of lithium borate is LiBO2路8H2O at 273.15 K, which formed as Li2B4O7路5H2O at 298.15 K.