Enthalpy and entropy interaction parameters of sodium chloride with some monosaccharides in water  

作　　者：ZHUO Kelei, WANG Jianji, BAI Guangyue, YAN Haike & WANG HangingSchool of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002, China Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 

出　　处：《Science China Chemistry》2004年第1期59-66,共8页中国科学（化学英文版）

基　　金：This work was supported by the Outstanding Youth Science Foundation of Henan Province(Grant No.0112000500);the Innovator Foundation for Colleges and Universities of Henan Province.

摘　　要：Dilution enthalpies of sodium chloride and some monosaccharides (glucose, galactose, xylose, arabinose, and fructose) in water and mixing enthalpies of aqueous sodium chloride and these monosaccharide solutions were measured by using an improved precision semimicro-titration calorimeter. Transfer enthalpies of sodium chloride from water to aqueous saccharide solutions were evaluated as well as enthalpy interaction parameters of sodium chloride with these monosaccharides in water. Combined with Gibbs energy interaction parameters, entropy interaction parameters were also obtained. The results show that interactions of the saccharides with sodium chloride depend on the stereochemistry of saccharide molecules. These interaction parameters can identify stereochemical structure of saccharide molecules. Keywords sodium chloride - monosaccharide - enthalpy interaction parameter - entropy interaction parameter - calorimetryDilution enthalpies of sodium chloride and some monosaccharides (glucose, galactose, xylose, arabinose, and fructose) in water and mixing enthalpies of aqueous sodium chloride and these monosaccharide solutions were measured by using an improved precision semimicro-titration calorimeter. Transfer enthalpies of sodium chloride from water to aqueous saccharide solutions were evaluated as well as enthalpy interaction parameters of sodium chloride with these monosaccharides in water. Combined with Gibbs energy interaction parameters, entropy interaction parameters were also obtained. The results show that interactions of the saccharides with sodium chloride depend on the stereochemistry of saccharide molecules. These interaction parameters can identify stereochemical structure of saccharide molecules.

关 键 词：sodium chloride  monosaccharide  ENTHALPY INTERACTION parameter  ENTROPY INTERACTION parameter  calorimetry. 

分 类 号：O642[理学—物理化学]