Heat effects measured in aqueous solutions of salts of poly(anethole sulfonic acid) upon mixing with alkali-, alkaline-earth-, and tetraalkylammonium chlorides

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• 作者：Petra Zalar ; Janez Cerar ; Ciril Pohar ; ^{ciril.pohar@fkkt.uni-lj.si}
• 关键词：Enthalpy of mixing ; Alkali-metal ions ; Tetraalkylammonium ions ; Hydrophilic ions ; Apparent size rule ; Ion hydration
• 刊名：Journal of Molecular Liquids
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：228
• 期：Complete
• 页码：112-120
• 全文大小：725 K
• 卷排序：228

文摘

Non-Coulomb mixing enthalpy of poly- and simple electrolyte solutions was studied. The mixing enthalpies of alkali counterions decrease with their hydration enthalpy. The mixing enthalpies TAA+ counterions increase with their hydration enthalpy. The mixing enthalpies increase with the apparent size of the counterions. Heat is evolved if smaller ions replace larger ones and used in the opposite case.