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Title: Apparent molar volumes of oxalic acid in wa-ter and in aqueous solutions of fructose at 293.15, 303.15, 313.15 and 323.15K
Authors: Gupta, Radha Rani
Singh, Mukhtar
Issue Date: Mar-2007
Publisher: CSIR
Abstract: Apparent molar volumes (Vφ) of oxalic acid in water and in aqueous solutions of fructose of varing concentrations (0.5-2.6) mol kg⁻¹ have been determined as a function of molality by meas-uring the densities at 293.15, 303.15, 313.15 and 323.15K. From these data, the limiting apparent molar volume (V⁰φ) , which is equal to the partial molar volume of oxalic acid at inifinite dilu-tion (V⁰₂), has been obtained at different temperatures. The partial molar volumes have been used to calculate the partial molar vol-umes of transfer (V⁰φ ) of oxalic acid from water to aqueous fructose solutions. The values of limiting apparent molar expansi-bilities, (φ⁰E ) and that of have also been de-termined from temperature-dependence of at various concen-trations of the fructose solutions. The results have been discussed in terms of various interactions operating in oxalic acid, water and fructose systems.
Page(s): 455-458
ISSN: 0376-4710
Appears in Collections:IJC-A Vol.46A(03) [March 2007]

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