298K下Na+,K+//NO3-,Cl--H2O体系中硝酸盐介稳程度的研究

摘要

Metastable equilibrium of univariant curve of NaNO3-KNO3 and the influence of humidity in the quaternary system Na+ , K + //C1~ , N03- -H20 were studied at 298 K by isothermal evaporation method. According to the experimental data, metastable equilibrium didn' t occur obviously in the univariant curve of NaNO3-KNO3 not only at lower humidity but also at higher humidity.%采用等温蒸发法研究了四元体系Na+，K+//NO3-，Clˉ-H2O在298 K时NaNO3-KNO3共饱曲线的介稳程度及湿度对该共饱曲线介稳程度的影响。结果表明：在298 K时，不管在高湿度还是在低湿度下该四元体系的NaNO3-KNO3单变量曲线介稳现象均不明显。