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IJPAP Vol.49(07) [July 2011] >


Title: Thermodynamic and transport studies on some basic amino acids in aqueous sodium acetate solution at different temperatures
Authors: Thirumaran, S
Inbam, P
Keywords: Molal hydration number
Limiting apparent molal volume
Adiabatic compressibility
Apparent molal compressibility
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: Ultrasonic velocity (U), density () and viscosity () of three amino acids namely l-arginine, l-lysine and l-histidine in aqueous sodium acetate solution (0.4 mol. kg-1) as a function of composition at 298.15, 308.15 and 318.15 K, have been measured. Using these experimental values, the acoustical parameters such as adiabatic compressibility (), molal hydration number (nH), apparent molal compressibility (K), apparent molal volume (V), limiting apparent molal compressibility (K0), limiting apparent molal volume (V0), the constants (SK, SV) and viscosity B-coefficient of Jones-Dole equations were calculated for all the three systems. These parameters have been thoroughly analysed and eventually emphasizing the possible molecular interactions in terms of structure-making and structure-breaking effects of the above amino acids in the solvent mixture
Page(s): 451-459
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(07) [July 2011]

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