CsNO_3-C_2H_5OH-H_2O三元体系在不同温度时的平衡溶解度及相关物性  

The Equilibrium Solubility of CsNO_3 in CsNO_(3)-C_(2)H_(5)OH-H_(2)O Ternary System at Different Temperatures and Its Physical Properties

作　　者：李淑妮[1] 翟全国[1] 胡满成[1] 夏树屏[2] 高世扬[1] 

机构地区：[1]陕西师范大学化学与材料科学学院,西安710062 [2]中国科学院盐湖研究所西安二部西安

出　　处：《应用化学》2004年第9期895-899,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目 ( 2 0 1710 3 2 )

摘　　要：采用自制微型平衡溶解度测定装置 ,研究了CsNO3 C2 H5OH H2 O三元体系在 - 10、10、30和 5 0℃这4个温度下的液固相平衡 ,测定了液相的密度和折光率数据 ,利用“湿渣结线法”确定出 4个温度下平衡固相均为无水盐 ,绘制了该体系的等温相图。用经验关联方程lnY =A0 +A1x +A2 x2 +A3 x3 对溶解度、密度和折光率数据进行了拟合 ,拟合结果较好 ,同时给出了C2 H5OH对CsNO3The equilibrium solubilities of CsNO_3 in CsNO_(3)-C_(2)H_(5)OH-H_(2)O ternary system at -10 ℃, 10 ℃, 30 ℃ and 50 ℃ have been studied using a self-made microdevice for solubility determination. The density and refractive index of the solutions were also determined. The equilibrium phase diagram is given and indicates that the equilibrium solid phase is CsNO_(3). The solubility, density and refractive index of the solution were correlated to the alcohol content according to the experimental equation ln Y=A_(0)+A_(1)x+A_(2)x^(2)+A_(3)x^(3).

关 键 词：硝酸铯 三元体系 相平衡 溶解度 密度 折光率 

分 类 号：O642.4[理学—物理化学]