The Calorimetric and Volumetric Properties of Selected α-Amino Acids and α,ω-Amino Acids in Water at T = (288.15, 298.15, 313.15, and 328.15) K and p = 0.1 MPa

被引：0
作者：
Andrew W. Hakin
Jin L. Liu
机构：
[1] The University of Lethbridge,Department of Chemistry and Biochemistry
来源：
Journal of Solution Chemistry | 2006年 / 35卷
关键词：
Heat capacity; Density; Volume; Amino acids; Aqueous solution; Protein model compounds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Relative densities and relative massic heat capacities have been measured for the amino acids β-alanine, 4-aminobutanoic acid, d,l-norleucine and d,l-norvaline in dilute aqueous solution at p = 0.1 MPa and T = (288.15, 298.15, 313.15 and 328.15) K. Apparent molar volumes and apparent molar heat capacities have been calculated and the isothermal concentration dependences of these properties have been modeled to yield apparent molar properties at infinite dilution. Values for apparent molar properties at infinite dilution are compared to those previously reported in the literature. Trends in the temperature dependences of the infinite dilution properties are discussed in terms of methylene group contributions and the variations in these contributions caused by the presence of ionic end groups.
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页码：1157 / 1171
页数：14
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