Dilution Enthalpies of Glycine in Aqueous Potassium Chloride Solution

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (15): 1405-1408. Previous Articles Next Articles

甘氨酸在氯化钾水溶液中的稀释焓

王旭¹, 许莉¹, 林瑞森¹, 孙德志²

1. 浙江大学化学系, 杭州, 310027;
2. 聊城大学化学化工学院, 聊城, 252059

投稿日期:2003-12-02 修回日期:2004-02-18 发布日期:2014-02-17
通讯作者: 林瑞森,E-mail:raisenlin@zju.edu.cn;Tel:0571-87952371. E-mail:raisenlin@zju.edu.cn
基金资助:
国家自然科学基金(No.20273061)资助项目.

Dilution Enthalpies of Glycine in Aqueous Potassium Chloride Solution

WANG Xu¹, XU Li¹, LIN Rui-Sen¹, SUN De-Zhi²

1. Department of Chemistry, Zhejiang University, Hangzhou 310027;
2. Department of Chemistry, Liaocheng University, Liaocheng 252059

Received:2003-12-02 Revised:2004-02-18 Published:2014-02-17

Abstract

The dilution enthalpies of glycine in aqueous potassium chloride solution have been determined using an LKB-2277 flow microcalorimetry at 298.15 K.The homogeneous enthalpic interaction coefficients in the range of potassium chloride concentration (0～1.3855 mol·kg^-1) have been calculated according to the excess enthalpy concept.The results show that enthalpic pair interaction coefficients h² of glycine are negative in aqueous potassium chloride solution and become less negative with increasing of the concentration of potassium chloride.

Key words: glycine, potassium chloride, dilution enthalpy, structural interaction, electrostatic interaction

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WANG Xu, XU Li, LIN Rui-Sen, SUN De-Zhi. Dilution Enthalpies of Glycine in Aqueous Potassium Chloride Solution[J]. Acta Chimica Sinica, 2004, 62(15): 1405-1408.

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甘氨酸在氯化钾水溶液中的稀释焓

Dilution Enthalpies of Glycine in Aqueous Potassium Chloride Solution

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