Energy Characterization of Effect for Ions on the Structure of Water

文献类型: 外文期刊

第一作者: He Jin-Song

作者: He Jin-Song;Gan Xiao-Ling;Zhu Song-Ming;Yu Yong;Li Jian-Ping;He Jin-Song;Yang Hong-Wei;Cai Ran;Zhu Wan-Peng;Mu Tai-Hua

作者机构:

关键词: Salt;Water;Cluster structure;Hydrogen bond;Energy characterization

期刊名称:ACTA PHYSICO-CHIMICA SINICA ( 影响因子:2.268; 五年影响因子:1.218 )

ISSN: 1000-6818

年卷期: 2011 年 27 卷 11 期

页码:

收录情况: SCI

摘要: At a concentration of 0-1.0 mol.L-1 the effect of salts (KCl, MgCl2, and CaCl2) on the structure of water was studied from the viewpoint of energy change using differential scanning calorimetry (DSC) and the results were compared with that obtained by the analysis of the chemical shift obtained by O-17-NMR (delta((OH2)-O-17)). A linear increase in the delta((OH2)-O-17) of water and a linear decrease in the apparent activation energy (-E'/R) of water with an increase in the concentration of salt was obtained. In addition, the rate of change of delta((OH2)-O-17) and -E'/R increased as follows: KCl

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