Work

Thermodynamic analysis of tartaric and lactobionic acids with aqueous potassium benzoate mixtures through volumetric and acoustic methods

Year: 2025

Type: article

Abstract: The molecular behavior of ternary liquid systems containing potassium benzoate and water-soluble organic acids (tartaric and lactobionic acids) was studied through measurements of density and ultrasonic velocity at varying concentrations (0.000-0.035) mol‧kg −1 and temperature varying from (288.15-318.15) K. Derived thermodynamic parameters such as apparent and partial molar volumes, apparent and partial molar isentropic compressibilities, expansibilities, transfer characteristics, thermal expansion coefficients, interaction coefficients were analyzed through investigated data from DSA 5000M to understand interactions. The structural influence of solutes in the solution, whether promoting or disrupting molecular order was interpreted using Hepler’s thermodynamic criterion and the co-sphere overlap hypothesis. Hydration numbers were estimated using Passynski’s relation based on compressibility data. These results contribute to the progress of stable and efficient formulations across various chemical, food, cosmetic, and pharmaceutical formulations.

Source: Chemical Thermodynamics and Thermal Analysis

DOI: 10.1016/j.ctta.2025.100216

Authors: Ashpinder Kaur Gill, Nabaparna Chakraborty, K.C. Juglan

Institution: Lovely Professional University

Language: English

Topic: Thermodynamic properties of mixtures

Subfield: Fluid Flow and Transfer Processes

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,350

Funders: Guru Nanak Dev University, Lovely Professional University