高校化学工程学报Issue(3)：510-515,6.DOI:10.3969/j.issn.1003-9015.2015.03.002
298 K下 Na+, K+//Clˉ, SO42ˉ, NO3ˉ-H2O五元体系液固介稳相平衡
Liquid–Solid Metastable Equilibria of a Quinary System Na+, K+//Clˉ, SO42ˉ, NO3ˉ-H2O at 298 K
摘要
Abstract
An experimental study on metastable equilibria of a quinary system Na+, K+//Clˉ, SO42ˉ,NO3ˉ-H2O at 298 K was performed using an isothermal evaporation method. Metastable equilibrium solubilities were determined experimentally, and the metastable equilibrium phase diagram under the condition saturated with NaCl was plotted. The results show that there are four invariant points, nine univariant curves and six regions of crystallization: Na2SO4·NaNO3·H2O + NaCl, NaNO3+ NaCl, 3K2SO4·Na2SO4+ NaCl, KNO3+ NaCl, Na2SO4+ NaCl and KCl + NaCl. Some differences were found between the metastable diagram and the stable phase diagram at 298 K, and the crystallization regions of 3K2SO4·Na2SO4 become smaller.关键词
五元体系/介稳相平衡/硝酸盐/溶解度Key words
the quinary system/metastable equilibrium/nitrate/solubility分类
化学化工引用本文复制引用
周婷,王雪枫,黄雪莉,李惠,刘娜..298 K下 Na+, K+//Clˉ, SO42ˉ, NO3ˉ-H2O五元体系液固介稳相平衡[J].高校化学工程学报,2015,(3):510-515,6.基金项目
国家自然科学基 (20866008,21166022). （20866008,21166022）
