Abstract
Density (ρ) and sound velocity (u) measurements were carried for aqueous solutions of sodium cyclamate (SC) from 293.15 to 318.15 K. Apparent molar and specific volumes, isentropic apparent molar compressibility and hydration numbers were computed from the experimental measurements. Apparent molar volumes (Φ V ) of SC show negative deviations from the Debye–Hückel limiting law and the values obtained for Φ V at given temperatures and concentrations were used as a direct measure of the ion–ion and ion–solvent interactions. Interactions causing a sweet taste require a specific volume to stimulate receptor sites from water and possibly also in the biophase. Furthermore, the partial molar expansibility (Φ ° E ), Hepler’s constant (∂2 Φ ° V /∂T 2) and thermal expansion coefficient have been estimated. This study will help to elucidate the structural interactions of SC with water and its taste in foods.
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Jamal, M.A., Khosa, M.K., Rashad, M. et al. Volumetric and Acoustic Behavior of Sodium Cyclamate in Aqueous System from 293.15 K to 318.15 K. J Solution Chem 45, 1009–1020 (2016). https://doi.org/10.1007/s10953-016-0488-4
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DOI: https://doi.org/10.1007/s10953-016-0488-4