Exploring ionic behavior: conductance studies of L-glutamic acid in aqueous D-sorbitol across temperature gradients
Year: 2025
Type: article
Abstract: In this paper molecular interactions of L-glutamic acid (Glu) in aqueous D-sorbitol (D-SOR) are analyzed by measuring electrical conductivity in the broad temperature range of 293.15-313.15 K at ambient pressure. The density and viscosity data were also measured experimentally required to explore the derived conductometric properties. Meanwhile, the molar conductance ([Formula: see text], limiting molar conductance[Formula: see text], Walden product ([Formula: see text]), ion association constants ([Formula: see text]) and activation energy ([Formula: see text] of ion association are derived and discussed in the light of ion-ion and ion-solvent interactions. The Kraus-Bray model was used to analyze the limiting molar conductance ([Formula: see text]) of the solutions. For the mixtures under study, the increased [Formula: see text] values for Glu in aqueous D-SOR compared to pure water suggest a synergistic interaction. As D-SOR concentration increases, [Formula: see text] of Glu decreases due to stronger solute-cosolute interactions and reduced ion dissociation. Glu functions as a structure creator in water, according to the [Formula: see text] finding. However, in aqueous D-SOR, increasing temperature and D-SOR concentration cause [Formula: see text] to drop, indicating structure-breaking behavior. Numerous energy and environmental applications may benefit from an investigation of the conductometric properties of Glu and D-SOR in aqueous solutions.
Source: BMC Chemistry
Authors: Swarnamayee Sahoo, Jyotirmayee Dalai, Rupesh Kumar Pradhan, Harapriya Panda, Sulochana Singh
Institution: Siksha O Anusandhan University
Language: English
Subfield: Fluid Flow and Transfer Processes
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,990
OpenAlex ID: W4416854200