{"title":"Correction to: Experimental and Theoretical Studies of Molecular Interactions Prevailing in N,N-Dimethylacetamide + Alkyl Acrylate Binary Mixtures using Acoustic and Viscometric Properties at Different Temperatures","authors":"Anil Kumar Nain, Dinesh Chand","doi":"10.1007/s10953-025-01526-4","DOIUrl":"10.1007/s10953-025-01526-4","url":null,"abstract":"","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"54 12","pages":"1663 - 1666"},"PeriodicalIF":1.3,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solubility Study of Amlodipine Besylate in Polyethylene Glycol 200 and Ethanol/1-Propanol at Various Temperatures: Determination, Modeling, and Thermodynamic Evaluation","authors":"Fatemeh DabbaghBadri, Fatemeh Khalili, Aynaz Zarghampour, Elaheh Rahimpour, Aliasghar Hamidi","doi":"10.1007/s10953-025-01506-8","DOIUrl":"10.1007/s10953-025-01506-8","url":null,"abstract":"<div><p>This study evaluated the solubility of amlodipine besylate (AMB) in binary solvent mixtures of polyethylene glycol (PEG) 200 and ethanol, as well as PEG 200 and 1-propanol, at five distinct temperatures. The solubility of AMB was assessed via the shake-flask method, and the concentrations of AMB in the solutions were measured using a UV–Vis spectrophotometer. The results demonstrated that the solubility of AMB in both binary solvent combinations increased with greater concentrations of PEG 200 and raised temperatures. The collected data were used in several mathematical models to predict solubility. The mathematical models yielded precise predictions regarding the solubility of AMB in various binary solvent systems, with mean relative deviations (MRDs%) below 11.6. The experimental data acquired for AMB dissolution included several thermodynamic properties, for example, standard Gibbs free energy (Δ<i>G</i>°), enthalpy (Δ<i>H</i>°), and entropy (Δ<i>S</i>°) variations. These features provide significant insights into the energy dimensions of the breakdown process.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 3","pages":"351 - 365"},"PeriodicalIF":1.3,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Physicochemical Properties, Intermolecular Interactions and CO2 Absorption Performance of N-Methyldiethanolamine + Polyethylene Glycol 300 + Water Solution","authors":"Yuting Wang, Min Wang, Xupeng Fu, Wenxue Wang, Liming Chai, Enna Wang, Xionghui Wei, Zhaojun Wu, Jianbin Zhang","doi":"10.1007/s10953-025-01520-w","DOIUrl":"10.1007/s10953-025-01520-w","url":null,"abstract":"<div><p>The impact of water on the physicochemical properties and CO<sub>2</sub> absorption capability of the <i>N</i>-methyldiethanolamine (MDEA) + polyethylene glycol 300 (PEG300) solution was explored. The molar ratio of PEG300 to MDEA was fixed at 0.3734: 0.6266, and the density and viscosity of the aqueous solutions were measured at<i> P</i> = 100.5 kPa and <i>T</i> = (298.15–318.15) K. Based on these measurements, the excess properties of the system were calculated. Meanwhile, spectral analysis confirmed the formation of intermolecular hydrogen bonds among MDEA, PEG300, and H₂O. Building on these findings, the influence of water content on the cyclic CO<sub>2</sub> absorption performance of the H₂O + (PEG300 + MDEA) system was systematically investigated, with particular emphasis on the regeneration behavior at 15 wt% MDEA concentration. Furthermore, the underlying mechanism of the cyclic CO₂ absorption process was elucidated using multiple analytical techniques. These insights provide certain theoretical support for the industrial application of PEG300 + MDEA aqueous systems in CO<sub>2</sub> capture.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 3","pages":"455 - 480"},"PeriodicalIF":1.3,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Real-Time Analysis of Salt Scale Dissolution: Enhancing the Traditional Gravimetric Method and Comparing Precision and Efficiency","authors":"Rui Huang, Renbao Zhao, Yuting Yuan, Yuanpeng Pu, Jiapeng Zhang, Shixun Bai, Jingjie Huang","doi":"10.1007/s10953-025-01501-z","DOIUrl":"10.1007/s10953-025-01501-z","url":null,"abstract":"<div><p>Scale deposition in oil/gas/water wells is a critical factor affecting well stability, making targeted selection of descaling agents and their field application parameters crucial for enhancing and sustaining production. Currently, the petroleum industry commonly employs traditional gravimetry to evaluate dissolution rates—an intermittent testing method with discontinuous data acquisition, susceptible to human interference, and incapable of real-time monitoring. This results in insufficient data for dissolution process analysis, leading to significant testing errors and low efficiency. To address these limitations, this study considers the universal phenomenon of real-time volume reduction and buoyancy loss during solid dissolution. By introducing parameters such as “buoyancy-equivalent mass” and “tension-equivalent mass”, a real-time dissolution rate calculation method was established based on dynamic force variations. Furthermore, a real-time scale dissolution rate testing procedure was designed and refined, and a testing platform was constructed. To demonstrate the superiority of the new method, comparative experiments were conducted between this method and the traditional gravimetric method for scale dissolution rate testing, comparing their testing precision and efficiency. The comparative experimental results are as follows: (1) <i>The new method exhibits superior testing precision</i>: Compared to the traditional gravimetric method, its standard deviation and relative standard deviation decreased by 11.3% (3.07% vs. 3.46%) and 25.9% (5.31% vs. 7.17%), respectively; (2) <i>The new method demonstrates higher testing efficiency</i>: Compared to the traditional gravimetric method, it offers better time efficiency (shorter testing duration: 7.3 h vs. 8.5 h), superior resource efficiency (fewer equipment usage instances: 7 times vs. 15 times), and better output efficiency (larger volume of data collected: sampling frequency 1 Hz vs. 1 h<sup>−1</sup>, a 3600-fold difference). This study proposes a novel real-time scale dissolution rate testing method that addresses the issue of discontinuous data acquisition. The method exhibits enhanced precision and efficiency. It holds great potential for studying the dissolution kinetics of salt scales and significant application value in the precise treatment of long-standing scale issues in oil and gas transportation pipelines.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 3","pages":"319 - 338"},"PeriodicalIF":1.3,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extended-UNIQUAC Model for Thermodynamic Modeling of CO2 Absorption in Aqueous Potassium Carbonate Solution","authors":"Fereshteh Samadi","doi":"10.1007/s10953-025-01507-7","DOIUrl":"10.1007/s10953-025-01507-7","url":null,"abstract":"<div><p>In this study, the Extended UNIQUAC thermodynamic model for electrolyte solutions was used to calculate the solubility of carbon dioxide in potassium carbonate aqueous solution. Available experimental data were used for determining the model parameters at temperatures of 313.15 K to 393.15 K, different equilibrium pressures (up to 1.2 MPa) and different solution concentrations of 15, 20 and 30 wt%. The value of the unknown parameters of the Extended UNIQUAC model, including the volume parameters, the surface parameters and the interaction energy parameters were optimized by nonlinear optimization method using experimental data available for ternary CO<sub>2</sub>–K<sub>2</sub>CO<sub>3</sub>–H<sub>2</sub>O system. The fugacity coefficient in the vapor phase was obtained using Soave–Redlich–Kwong equation of state (SRK-EOS). The results of this study show that the Extended UNIQUAC is a consistent thermodynamic model for representing vapor–liquid equilibrium (VLE) of the CO<sub>2</sub>–K<sub>2</sub>CO<sub>3</sub>–H<sub>2</sub>O system and the average absolute relative deviation (AARD) between the experimental and the predicted data was 3.81%.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 3","pages":"339 - 350"},"PeriodicalIF":1.3,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Critical Analysis of the Paper Titled “Experimental and Theoretical Studies of Molecular Interactions Prevailing in N,N-Dimethylacetamide + Alkyl Acrylate Binary Mixtures Using Acoustic and Viscometric Properties at Different Temperatures”","authors":"William Acree","doi":"10.1007/s10953-025-01524-6","DOIUrl":"10.1007/s10953-025-01524-6","url":null,"abstract":"<div><p>A polemic is given regarding several of the acoustic properties reported in the published paper by Nain and Chand. The excess sound velocity was found to be based on an incorrect mathematical expression for the density of an ideal solution, and the authors’ calculated numerical values for the excess partial molar isentropic compressions of the individual mixture components were found to be inconsistent with the excess molar isentropic compressions of the binary liquid mixtures. The inconsistencies likely result from incorrect mathematical expressions used to calculate the partial molar isentropic compressions of the individual mixture components.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"54 12","pages":"1667 - 1673"},"PeriodicalIF":1.3,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effective Extraction and Separation Mechanism of Phenolic Acids Based Aqueous Two-Phase Extraction by Functionalized Ionic Liquids","authors":"Xin-Hong Wang, Xue-Quan Zou, Jing-Ping Wang","doi":"10.1007/s10953-025-01499-4","DOIUrl":"10.1007/s10953-025-01499-4","url":null,"abstract":"<div><p>Phenolic acids, widely present in agro-industrial residues (e.g., olive leaves, rice husk hydrolysate) and plant extracts, are valuable bioactive compounds with antioxidant and pharmaceutical applications. Their efficient separation from complex aqueous matrices remains a critical challenge in green extraction processes. Ionic liquids (ILs) are recognized as sustainable solvents for liquid–liquid extraction due to their structural versatility and low environmental impact. However, conventional ILs often exhibit suboptimal performance in aqueous two-phase systems (ATPS) for recovering phenolic acids. This study systematically investigated three functionalized imidazolium ILs ([CMmim]BF<sub>4</sub>, [CMmim]Cl, [HEmim]Cl) combined with sodium dihydrogen phosphate (NaH<sub>2</sub>PO<sub>4</sub>) based ATPS to optimize the extraction of phenolic acids (ferulic acid, cinnamic acid, and gallic acid). Through single-factor experiments, the highest efficiencies were achieved under mild conditions (298 K, pH 3.0, phase ratio 9.0): 64.54% for ferulic acid, 72.56% for cinnamic acid, and 80.84% for gallic acid at NaH<sub>2</sub>PO<sub>4</sub> concentrations of 0.5 g·mL<sup>−1</sup> for FA and CA, 0.45 g·mL⁻<sup>1</sup> for GA, respectively. Thermodynamic analysis revealed enthalpy-driven extraction (Δ<i>H</i> = − 21.62 to − 25.83 kJ·mol<sup>−1</sup>; Δ<i>S</i> = − 8.00 to − 17.35 J·mol<sup>−1</sup>·K<sup>−</sup><sup>1</sup>), dominated by hydrogen bonding and van der Waals interactions, as confirmed by UV–vis, FTIR, and <sup>1</sup>H NMR spectroscopy. The functional groups (–COOH, –OH) on ILs were shown to enhance solute–solvent interactions, while NaH<sub>2</sub>PO<sub>4</sub> acts as a kosmotropic salt to promote phase separation via the Hofmeister effect. These findings highlighted the potential of functionalized IL-based ATPS for efficient and sustainable extraction of bioactive compounds from aqueous media. They also established a mechanistic framework for designing specific ILs, offering a green alternative to volatile organic solvents in bioactive compound recovery.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 2","pages":"204 - 218"},"PeriodicalIF":1.3,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147337650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Determination and Correlation of the Solubility of Ammonium Sulfate in Aqueous Solutions of Caprolactam with Different Concentrations","authors":"Meiqi Zhang, Yupeng Wu, Zhuangzhuang Tian, Yunfei Yu, Guantao Zhang, Xunqiu Wang","doi":"10.1007/s10953-025-01525-5","DOIUrl":"10.1007/s10953-025-01525-5","url":null,"abstract":"<div><p>In order to explore the effect of caprolactam on the solubility of ammonium sulfate in water, the laser dynamic method was used to measure the solubility of ammonium sulfate in aqueous solutions of caprolactam with different concentrations at temperatures ranging from 293.15 K to 333.15 K. The modified Apelblat equation, λh equation, and Van’t Hoff–Yaws model were employed to correlate the experimental data. It was found that the average relative deviation (ARD) was less than 0.5%, demonstrating a good agreement between the fitted values and the experimental data. Thermodynamic analysis shows that the dissolution of ammonium sulfate in caprolactam aqueous solution is an endothermic process, and the solubility enthalpy of the dissolution estimation system was estimated to be about 2.50 kJ/mol. This study for the first time revealed the inhibitory effect of caprolactam on the solubility of ammonium sulfate, which provided a thermodynamic basis for the crystallization process. In the industrial process, the crystal size and crystallization efficiency of ammonium sulfate can be improved by setting an appropriate caprolactam concentration and crystallization speed.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 3","pages":"437 - 454"},"PeriodicalIF":1.3,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rui-Zhi Cui, Guo-Liang Nie, Hong-Bao Ren, Qiu-Ye Yang, Wu Li
{"title":"Measurement and Modeling of the Solid–Liquid Equilibria in the Quinary System LiBr − NaBr − KBr − SrBr2 − H2O and Its Subsystems at 298.15 K","authors":"Rui-Zhi Cui, Guo-Liang Nie, Hong-Bao Ren, Qiu-Ye Yang, Wu Li","doi":"10.1007/s10953-025-01513-9","DOIUrl":"10.1007/s10953-025-01513-9","url":null,"abstract":"<div><p>Based on mother liquor rich in lithium, strontium and bromine obtained from the brine of underground oil–gas field in Qaidam Basin after pre-treatment, the isothermal dissolution equilibrium method was used to study the stable solid–liquid equilibria and phase diagrams of the quinary system LiBr − NaBr − KBr − SrBr<sub>2</sub> − H<sub>2</sub>O and its subsystems at 298.15 K. The solubilities of solids in each system were determined, respectively, and the equilibrium solid phases were determined. In order to clearly reflect the regularities and characteristics of phase equilibria of multi-component systems, the corresponding phase diagrams were also plotted and analyzed. The Pitzer model for the quinary system was parameterized by using relevant experimental thermodynamic data. The solubilities of solids in this quinary system and its subsystems were calculated and compared with experimental results. The results not only help to reveal the thermodynamic behavior of relevant bromides in the process of brine concentration, but also provide some theoretical support for the comprehensive utilization of its brine resources.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 2","pages":"290 - 305"},"PeriodicalIF":1.3,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147337618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solid–Liquid Equilibrium Solubility and Thermodynamic Properties of 2,4,6-Trinitro-3-Bromoanisole in Different Pure Solvents","authors":"Yongzheng Liu, Yuqi Wu, Zhike Tong, Congying Li, Xinyue Hu, Xiaolan Song, Fanfan Shen, Duanlin Cao, Linxiu Zhao","doi":"10.1007/s10953-025-01490-z","DOIUrl":"10.1007/s10953-025-01490-z","url":null,"abstract":"<div><p>In this paper, the solubility of 2,4,6-trinitro-3-bromoanisole (TNBA) in methanol, ethanol, <i>n</i>-propanol, <i>n</i>-butanol, dichloroethane, cyclohexane, ethyl acetate, acetonitrile, acetone, benzene, methylbenzene and water over the temperature range of 283.15–323.15 K has been determined for the first time by gravimetric method. In the experimental temperature range, the order of average solubility of TNBA in twelve pure solvents is as follows: acetone (23.1736 × 10<sup>–2</sup>) > benzene (16.3735 × 10<sup>–2</sup>) > acetonitrile (16.3586 × 10<sup>–2</sup>) > ethyl acetate (16.0661 × 10<sup>–2</sup>) > methylbenzene (14.4027 × 10<sup>–2</sup>) > dichloroethane (11.1222 × 10<sup>–2</sup>) > methanol (0.8543 × 10<sup>–2</sup>) > ethanol (0.6077 × 10<sup>–2</sup>) > <i>n</i>-propanol (0.4664 × 10<sup>–2</sup>) > <i>n</i>-butanol (0.4646 × 10<sup>–2</sup>) > cyclohexane (0.0693 × 10<sup>–2</sup>) > water (0.0186 × 10<sup>–2</sup>). The solubility of TNBA in twelve pure solvents was correlated using the modified Apelblat equation, λh equation, van't Hoff model and Jouyban–Acree model, and the predictive accuracy of the four groups of models was evaluated by the R<sup>2</sup>, <i>ARD</i>, and <i>RMSD</i> criteria, and the comparison revealed that Jouyban–Acree model had a better match with the experimental data with the highest accuracy. Additionally, the thermodynamic parameters of TNBA solubility in twelve pure solvents were calculated. The enthalpy of dissolution <span>((Delta{H}^circ_text{sol}))</span>, entropy of dissolution <span>((Delta{S}^circ_text{sol}))</span>, and Gibbs free energy of dissolution <span>((Delta{G}^circ_text{sol}))</span> at mean temperature in different pure solvents reached 17.14–77.98 kJ·mol<sup>−1</sup>, − 12.51 to − 78.27 J·mol⁻<sup>1</sup>·K⁻<sup>1</sup> and 20.93–101.66 kJ·mol⁻<sup>1</sup>, respectively. The results demonstrate that the dissolution behavior of TNBA in the selected solvents is an endothermic and non-spontaneous process.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"55 2","pages":"139 - 157"},"PeriodicalIF":1.3,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}