Acoustic and spectroscopic investigation of sodium salicylate with potassium chloride/sodium bicarbonate: A volumetric and thermodynamic study

IF 2 3区化学 Q4 CHEMISTRY, PHYSICAL

Chemical Physics Pub Date : 2025-06-07 DOI:10.1016/j.chemphys.2025.112804

Mashahid Hussain Choudhary , Nabaparna Chakraborty , Kailash Chandra Juglan , Raman Kamboj , Abrar H. Syed

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引用次数: 0

Abstract

The investigation of acoustic, volumetric and spectroscopic aspects of electrolytes is vital for understanding their role in various biological and chemical systems. In this study, we present an investigation of the physicochemical traits of aqueous ternary mixes of sodium salicylate with KCl/NaHCO₃. Experimental values on sound velocity (u) and density (ρ) were collected across different concentrations of sodium salicylate and to compute key thermodynamic parameters, including molar properties such as apparent and partial values, transfer properties, thermal expansion, relative association, and relaxation strength. Pair and triplet coefficients were analysed to unveil solute- solute and solute-solvent interactions. The limiting apparent molar expansibilities (

E_{ϕ}^{0})

along with their first-order derivatives

(\frac{\partial E_{ϕ}^{0}}{\partial T})

were also calculated. FTIR spectroscopy has been employed to explore molecular interactions and confirm the existence of hydrogen bonding in the solutions. The results reveal key solute-solvent interactions and structural shifts, aiding material science and biophysics

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水杨酸钠与氯化钾/碳酸氢钠的声学和光谱研究：体积和热力学研究

电解质的声学、体积和光谱方面的研究对于理解它们在各种生物和化学系统中的作用至关重要。在这项研究中，我们提出了水杨酸钠与KCl/NaHCO3的水三元混合物的物理化学特性的研究。收集了不同浓度水杨酸钠的声速(u)和密度（ρ）的实验值，并计算了关键的热力学参数，包括表观值和偏值、传递性质、热膨胀、相对关联和弛豫强度等摩尔性质。分析了对和三重态系数，揭示了溶质-溶质和溶质-溶剂的相互作用。还计算了极限表观摩尔膨胀率（Eϕ0）及其一阶导数∂Eϕ0∂T。利用FTIR光谱研究了分子间的相互作用，并证实了溶液中存在氢键。结果揭示了关键的溶质-溶剂相互作用和结构变化，有助于材料科学和生物物理学

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来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.