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Thermophysical studies of protonated and deprotonated glycine in aqueous sodium acetate buffer solutions at different temperatures

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Title Thermophysical studies of protonated and deprotonated glycine in aqueous sodium acetate buffer solutions at different temperatures
 
Creator Patyar, Poonam
Kaur, Gurpreet
 
Subject Acetate buffer
pH
Glycine
Density
Viscosity
 
Description 1317-1328
Interactions of glycine in water and in (0.10, 0.50 and 1.00) mol kgāˆ’1 aqueous sodium acetate buffer solutions of pH(1.00 and 12.40) have been investigated at different temperatures, T(K) = (298.15-318.15). Densities, šœŒ and viscosities, šœ‚ of glycine in water and in aqueous sodium acetate buffer solutions have been measured. The obtained density data have been used to calculate apparent molar volume, šœ™š‘£, limiting partial molar volume, šœ™š‘£š‘œ, limiting partial molar volumes of transfer,Ī”š‘”š‘Ÿšœ™š‘£. Viscosity B-coefficient, viscosity B-coefficient of transfer, Ī”š‘”š‘Ÿšµ, activation free energies per mole of the solute,Ī”šœ‡2š‘œ# and solvent, Ī”šœ‡1š‘œ# have been calculated from viscosity data. Further, second order derivative of partial molarexpansion coefficient and dependence of š‘‘šµš‘‘š‘‡ coefficients on temperature is useful in measuring the structure making and breaking behaviour of solute in these systems. Pair and triplet interaction coefficients for both the properties were also calculated. Thus, the results obtained from volumetric and viscometric studies are of considerable importance to identify different type of interactions (i.e. H-bonding, van der Waals interactions) in these systems.
 
Date 2021-10-14T11:44:56Z
2021-10-14T11:44:56Z
2021-10
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/58305
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC-A Vol.60A(10) [October2021]