| Li+，K+//CO32-，B4O72--H2O交互四元体系298 K介稳相平衡研究 |
| Metastable Phase Equilibria of the Quaternary Reciprocal System Li+，K+//CO32-，B4O72--H2O at 298 K |
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| 摘要: |
| 关键词: 四元体系Li+，K+//CO32-，B4O72--H2O 介稳相平衡 扎布耶盐湖 |
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| Abstract: This paper reports experimental data of metastable phase equilibria and the corresponding phase diagram of the quaternary system Li+，K+//CO32-，B4O72--H2O, a subsystem of the brine system of Zhabuye Salt Lake, Tibet at 298 K. The results indicate that this quaternary system is of simple eutecyic-type and no double salt or solid solution is formed. The isothermal diagram consists of two invariant points, five univariant curves and four crystallization fields. These fields correspond to K2B4O7·4H2O, K2CO3·3/2H2O，Li2B4O7·5H2O and Li2CO3 salts, respectively. It is found that: (1) under the metastable equilibrium conditions the crystallization species of K2B4O7·4H2O, K2CO3·3/2H2O, and Li2CO3 are the same as those under the stable equilibrium ones; (2) Li2B4O7·3H2O found in the stable equilibrium case is replaced by Li2B4O7·5H2O in the metastable equilibrium conditions, so does the crystallization region in the phase diagram. |
| Keywords: Li+,K+//CO32-,B4O72--H2O system metastable equilibrium Zhabuye Salt-Lake |
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| 闫书一,陈 婷,梁 渠,殷辉安,曾 英.Li+，K+//CO32-，B4O72--H2O交互四元体系298 K介稳相平衡研究[J].无机化学学报,2008,24(7):1164-1167. |
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