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Volumetric, viscometric and ultrasonic study of amino acids in mixed solvents at varying temperature

Author:

Sundaramurthy, N., Rajamannan, B. and Rajalakshmi, S.

Subject Area:

Physical Sciences and Engineering

Abstract:

Densities (ρ), viscosities (η) and ultrasonic speeds (u), for solutions of (0.02, 0.04, 0.06, 0.08 and 0.10 M) L - Valine (Val), L - isoleucine (Ile) and L - Proline (Pro) in aqueous 1, 3 - dioxolane (10 % w/w) at 298.15, 303.15, 313.15 and 323.15K have been determined. These data have been used to calculate apparent molar volumes (φv), limiting apparent molar volume (φv°) and the slope (Sv), apparent molar compressibility (φk), limiting apparent molar compressibility (φk°) and the slope (Sk), Falkenhagen and Jones–Dole coefficients, A and B, respectively. These parameters were used to discuss the solute–solute and solute–solvent interactions and also the effect of cosolvent (1, 3 - dioxolone) on these interactions.

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