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Studies on Aqueous Solutions of Saccharides. I. Activity Coefficients of Monosaccharides in Aqueous Solutions at 25 °C

1983; Oxford University Press; Volume: 56; Issue: 6 Linguagem: Inglês

10.1246/bcsj.56.1620

1348-0634

Koichiro Miyajima, Masahiro Sawada, Masayuki Nakagaki,

Analytical Chemistry and Chromatography

Abstract Activity coefficients of isomeric monosaccharides, d-glucose, d-mannose, and d-galactose were determined by isopiestic comparison method at 25 °C. Excess partial molar entropy of water (\barSwex) of each monosaccharide solution was negative and the absolute value increased with concentration of solute. From the magnitudes of negative \barSwex, it was concluded that the structure making ability among three isomers lies in the order d-glucose>d-mannose>d-galactose.