Activity Coefficients of NaCI in Ethylene Glycol-Water Mixtures Using Potentiometric Measurements at 288.15, 298.15 and 308.15 K  

作　　者：李淑妮 唐静 马燕燕 翟全国 蒋育澄 胡满成 

机构地区：[1]Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi＇ an, Shaanxi 710062, China

出　　处：《Chinese Journal of Chemistry》2011年第10期2007-2013,共7页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 20871079） and the Fundamental Research Funds for the Central Uni- versities （No. 2010ZYGX027）.

摘　　要：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-Htickel 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.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-Htickel 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.

关 键 词：THERMODYNAMIC activity coefficient Pitzer equation potentiometric measurements 

分 类 号：O646.1[理学—物理化学] U177.1[理学—化学]