Li_2SO_4-K_2SO_4-MgSO_4-H_2O体系及次级体系298.15K时的热化学研究  

Thermochemistry of Li_2SO_4-K_2SO_4-MgSO_4-H_2O System and Subsystems at 298.15K

作　　者：李积才[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：《化学学报》1995年第11期1071-1075,共5页Acta Chimica Sinica

基　　金：国家自然科学基金资助课题.

摘　　要：用连续滴定量热法研究Li_2SO_4-K_2SO_4-MgSO_4-H_2O体系及次级体系Li_2SO_4-K_2SO_4-H_2O、Li_2SO_4-MgSO_4-H_2O和K_2SO_4-MgSO_4-H_2O_298.15K时在离子强度为15～0.1范围内的比热容和稀释热,并结合Debye-Hückel)焓极限公式研究离子强度在15～0.0001范围内的表观摩尔焓.The heats of dilution and heat capacities of system Li2SO4-K2SO4-MgSO4-H2O and subsystems Li2SO4-K2SO4-H2O, Li2SO4-MgSO4-H2O and K2SO4-MgSO4-H2O were measured to cover ionic strength range from 15 to 0.1 at 298.15K. The data of the heat of dilution were extrapolated to infinite dilution by use of the Debye-Huckel liminting law to obtain relative apparent molal enthalpies over the ionic strength range 15-0.0001.

关 键 词：盐卤体系 热容 稀释热 摩尔焓 量热法 

分 类 号：O642.542[理学—物理化学]