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Citation: Xie Wen-Hui, Zheng Zi-Qin, Tang Ming, Li Dong. Studies on Activity Coeficients of Chlorobenzene System in Aqueous salt Solutions[J]. Acta Physico-Chimica Sinica, ;1993, 9(03): 392-397. doi: 10.3866/PKU.WHXB19930319 shu

Studies on Activity Coeficients of Chlorobenzene System in Aqueous salt Solutions

1.
Department of Chemistry, Peking University, Beijing 100871

Received Date: 29 December 1991
Available Online: 15 June 1993

The activity coefficients of chlorobenzene, m-,p-dichlorobenzene and 1,2,4-tri-chlorobenzene in NaCl, KCl, Na_2CO_3, K_2SO_4 and CaCl_2 aqueous salt solutions, and chlorobenzcne in Et_4NBr have been determined at 298.15 K by spectrophotometry.
The chlorobenzene in Et_4NBr aqueous salt solution is salting-in, while others are salting-out. The experimentsl salting-out orders are as follows: K_2SO_4>Na_2Co_3>CaCl_2>NaCl>KCl. These results are compared with the calculated results of Debye-McAulay and Conway-Desnoyers-Smith electrostatic theories; Masterton-Lee scaled particle theory. McDevit-Long internal pressure theory and modified internal pressure theory. It is verified that the modified internal pressure theory coincides with the experimental value better.
- Activity coefficient; Salt effect; Chlorobenzene system
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