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Enthalpic Pair Interaction of Rubidium Chloride with α‐Amino Acid in Water at 298.15 K
Author(s) -
ManCheng Hu,
Qian Yang,
YuCheng Jiang,
ShuPing Xia
Publication year - 2005
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200590715
Subject(s) - chemistry , aqueous solution , dilution , amino acid , chloride , alanine , glycine , alkali metal , inorganic chemistry , additive function , enthalpy , rubidium , thermodynamics , organic chemistry , potassium , biochemistry , mathematical analysis , physics , mathematics
The mixing enthalpies of aqueous heavy rare alkali metal chloride RbCl solutions with aqueous α‐amino acid ( L ‐glycine, L ‐alanine and α‐aminobutyric acid) solutions, as well as the dilution enthalpies of RbCl and α‐amino acid solutions in pure water had been measured at 298.15 K. The transfer enthalpies of RbCl from pure water to aqueous α‐amino acid solutions could be obtained from these data. The enthalpic pair interaction parameters of RbCl with α‐amino acid in water have been evaluated according to the McMillan‐Mayer theory and discussed in terms of the electrostatic interaction, structure interaction and Savage‐wood group additivity mode.