Acta Chimica Sinica ›› 1994, Vol. 52 ›› Issue (5): 461-467. Previous Articles     Next Articles

Original Articles

水溶液中盐酸-醇相互作用的热力学参数I. 盐酸-1, 2-丙二醇- 水体系(278.15 ~318.15K)

卓克垒;王键吉;卢雁;卢锦梭   

  1. 河南师范大学化学系.新湘(453002)
  • 出版日期:1994-05-15 发布日期:1994-05-15

Thermodynamic parameters of interaction of HCl with alcohols in water I. HCl-1, 2-propanediol-water system at 278.15~318.15K

Zhao Kelei;Wang Jianji;Lu Yan;Lu Jinsuo   

  1. Henan Normal Univ, Dept Chem.Xinxiang(453002)
  • Online:1994-05-15 Published:1994-05-15

The emfs of cells without-junction Pt,H~2(g,p^0)|HCl(m~E)|AgCl-Ag; Pt,H~2(g,p^0)|HCl(m~E),PG(m~N)|AgCl-Ag have been measured at 10 degree intervals from 278.15 to 318.15K, where PG refers to 1, 2- propanediol, m~E=0.005-0.1mol.kg^-^1, m~N=0.4-1mol.kg^-^1. The emf data were used to calculate salting constant k~s for HCl+PG+H~2O system and thermodynamic parameters of pair interaction, f~E~N(g~E~N, s~E~N, h~E~N and c~P~,~E~N) between HCl and PG in water. It has been shown that k~s>0, g~E~N>0, s~E~N>0, h~E~N>0 and c~P~,~E~N<0. The signs of these parameters and the temperature dependence of them have been interpreted by the model of structural interaction.

Key words: PROPANEDIOL, HYDROCHLORIC ACID, THERMODYNOMICS PARAMETER, SALT EFFECT

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