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IJC-A Vol.49A(10) [October 2010] >


Title: Volumetric and ultrasonic studies of glycine in binary aqueous solutions of mannose, maltose and raffinose at different temperatures
Authors: Pal, Amalendu
Chauhan, Nalin
Keywords: Solution chemistry
Amino acids
Saccharides
Apparent molar volumes
Adiabatic compressibilities
Density
Speed of sound
Issue Date: Oct-2010
Publisher: NISCAIR-CSIR, India
Abstract: Apparent molar volumes and adiabatic compressibilities of glycine ( 0.05-0.30 mol kg-1) in aqueous¬† mannose, maltose¬† and raffinose solutions ranging from pure water to 6.0 mass % of saccharides have been determined at 288.15, 298.15 and 308.15 K from precise measurements of density and speed of sound. Partial molar volumes and partial molar adiabatic compressibilities of glycine at infinite dilution are evaluated. These values are used for calculating the number of water molecules hydrated to glycine molecule. Transfer volumes and transfer adiabatic compressibilities at infinite dilution from water to aqueous saccharide solutions have also been calculated. Transfer parameters have been interpreted in terms of solute-cosolute interactions on the basis of cosphere overlap model. Pair and triplet interaction coefficients have also been calculated from transfer parameters.
Page(s): 1309-1317
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.49A(10) [October 2010]

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