盐湖盐类水溶液298.15K时稀释热和表观摩尔焓的研究  

Enthalpies of Dilution and Relative Apparent Molal Enthalpies of the Major Aqueous Salts of Salt Lakes at 298.15K

作　　者：李积才[1] 翟宗玺[1] 曾忠民[1] 王鲁英[1] 

机构地区：[1]中国科学院青海盐湖研究所,西宁810008

出　　处：《物理化学学报》1994年第8期759-769,共11页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金

摘　　要：The heat of dilution of aqueous solution of the chloride(KCl, NaCl, MgCl2,CaCl2) and sulfate (Na2SO4, K2SO4, MgSO4) of Salt Lakes were measured over a concentration range of 0.05-2.1mol. kg-1 at 298.15K. The data were extrapolated to indrite dilution by use of the Debye-Hhckel lindtion law to obtain relative apparent molal enthalpies (Li). The enthalpies of dilution were calculated using the ion interaction model of Pitzer. The experimental enthalpies (△He) were compared with calculated values (△Hc)of dilution.The heat of dilution of aqueous solution of the chloride(KCl, NaCl, MgCl2,CaCl2) and sulfate (Na2SO4, K2SO4, MgSO4) of Salt Lakes were measured over a concentration range of 0.05-2.1mol. kg-1 at 298.15K. The data were extrapolated to indrite dilution by use of the Debye-Hhckel lindtion law to obtain relative apparent molal enthalpies (Li). The enthalpies of dilution were calculated using the ion interaction model of Pitzer. The experimental enthalpies (△He) were compared with calculated values (△Hc)of dilution.

关 键 词：盐湖 盐水溶液 稀释热 表观摩尔焓 

分 类 号：P343.3[天文地球—水文科学]