摘要
用高精度等温外壳式量热计测量了298．15K下NaBr在不同组成正丙醇水混合溶剂中溶解热，根据测量结果及以前作者对NdCl_3，BaCl_2；NaCl，Nal，NaF／n－C_3H_7OH－H_2O体系溶解热的研究结果，计算T298．15K下，正丙醇水混合溶剂中，上述盐的标准溶解热和NaF，NaCl，NaBr和NaI的溶剂化热．讨论了电解质溶解热和溶剂化热与离子特性、混合溶剂的组成和结构的关系．
Enthalpies of solution of NaBr in aqueous ndxtures 0f n-propanol has been measures over various ranges of compositions at 298.15 K, using high-sensitive calorime ter with isothermal shell. On the bases of the results obtained and our former work for the systems NdCl3, BaCl2, NaCl, NaF, and NaI/n-propanol-water, standled enthaJpies ofsolution of afoementioned salts and enthalpies of solvation of soditlm halide in aqueous thextures of n-propanol were calculated. The dependence of enthapies of sulution and solvation of the electrolytes on the nature of ion, composition and structure of the mixed solvents was discussed.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1994年第10期903-908,共6页
Acta Physico-Chimica Sinica
关键词
溴化钠
正丙醇
水
溶剂
溶解热
n-propanol, Sodium bromide, Electrolyte, Enthalpies of solution,Enthalpies of solvation
