Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

The experimental values of densities (q), speeds of sound (u) and relative viscosities (gr) of piperazine citrate in aqueous solution and in 0.06 mol kg 1 of sodium chloride and D-glucose as a function of concentration have been obtained at T=K = (293.15, 303.15 and 313.15). The thermodynamic parameters such as apparent molar volume oV/P of solute, isentropic compressibility ojsP, apparent molar isentropic compressibility oj/P of solute, piperazine citrate in water and in aqueous solutions of sodium chloride and D-glucose have been computed using the density and speed of sound data. The limiting apparent molar volume of solute oV0 /P, limiting apparent molar compressibility oj0 /P in binary and ternary solution have been obtained using apparent molar volume and apparent molar compressibility data. The limiting apparent molar expansivity oE0 /P of solute and thermal expansion coefficient oa P in both aqueous binary and ternary solutions has been computed. Transfer volumes oDtrV0 /P and transfer compressibilities oDtrj0 /P of piperazine citrate from water to aqueous solutions of sodium chloride and D-glucose at different temperatures have been obtained. The Jones-Dole viscosity coefficients A, B, D, variation of viscosity B coefficient with temperature i.e. dB=dT; hydration number for aqueous solutions of piperazine citrate and in aqueous solutions of sodium chloride and D-glucose have been determined. The above parameters have been used to throw light on the various interactions occurring between binary and ternary systems.