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Activity Coefficients of NaCl in Ethylene Glycol‐Water Mixtures Using Potentiometric Measurements at 288.15, 298.15 and 308.15 K
Author(s) -
Li Shuni,
Tang Jing,
Ma Yanyan,
Zhai Quanguo,
Jiang Yucheng,
Hu Mancheng
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201180349
Subject(s) - chemistry , ethylene glycol , potentiometric titration , activity coefficient , ethylene , electrolyte , gibbs free energy , thermodynamics , electroanalytical method , analytical chemistry (journal) , inorganic chemistry , chromatography , organic chemistry , aqueous solution , electrode , physics , catalysis
The mean activity coefficients of NaCl in ethylene glycol‐water mixtures were determined in the range of w =0.10 to 0.40 ethylene glycol at 288.15, 298.15 and 308.15 K using potentiometric measurements. The Pitzer and extended Debye‐Hückel equations were used to describe the nonideal behavior of the electrolyte. Osmotic coefficients and the standard Gibbs energy of NaCl‐ethylene glycol‐water were calculated.