Journal of Solution Chemistry最新文献_第10页

Thermal Degradation of Piperazine in Sulfolane Aqueous Solution in CO2 Capture Process CO2捕集过程中环砜水溶液中哌嗪的热降解

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-12-05 DOI: 10.1007/s10953-023-01342-8

Mousa Zamani, Mohammad Shokouhi, Hooman Fatoorehchi, Mehdi Vahidi

{"title":"Thermal Degradation of Piperazine in Sulfolane Aqueous Solution in CO2 Capture Process","authors":"Mousa Zamani, Mohammad Shokouhi, Hooman Fatoorehchi, Mehdi Vahidi","doi":"10.1007/s10953-023-01342-8","DOIUrl":"10.1007/s10953-023-01342-8","url":null,"abstract":"<div>Thermal degradation of piperazine (PZ) in aqueous and mixed sulfolane (SFL) (30% by weight) + H2O solution as a hybrid context was investigated as a function of temperature and two levels of piperazine concentrations and two levels of carbon dioxide loadings. Degradation of PZ in aqueous solution has been found to be first order. The pseudo rate constants for 5%wt solution of piperazine at 145, 160 and 175 °C in aqueous solution are 2.24 × 10–9, 1.09 × 10–8 and 2.27 × 10–7 and in the hybrid media are 3.56 × 10–8, 7.67 × 10–8 and 1.19 × 10–7 per second, respectively, and the activation energies for the aqueous and hybrid media were estimated 238.71 and 62.77 kJ/mole, respectively. Considering the most abundant degradation products identified; 3-(hydroxyethyl)-2-oxazolidone (HEOD), N,N-bis-(2-hydroxyethyl)-piperazine (BHEP), N,N’,N-tris-(hydroxyethyl) ethylenediamine (THEED), 1-[2-[(2-Aminoethyl) amino] ethyl] piperazine (AEAEPZ) and 1-Methylpiperazine (1-MPZ), the degradation pathway of PZ in both media is expected to proceed through ring opening of protonated PZ with the attack of other piperazine molecules on its alpha carbon. The presence of SFL only accelerates the reactions without changing the degradation mechanism.</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 3","pages":"486 - 505"},"PeriodicalIF":1.4,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524341","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}

引用次数: 0

Solvent Shared Ion Pairs and Direct Contacted Ion Pairs in LiCl Aqueous Solution by IR Ratio Spectra LiCl水溶液中溶剂共享离子对和直接接触离子对的红外光谱分析

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-12-05 DOI: 10.1007/s10953-023-01339-3

Zeya Jin, Xiaowen Kong, Zhiqiang Wang, Ruiting Zhang, Lin Ma, Ke Lin

{"title":"Solvent Shared Ion Pairs and Direct Contacted Ion Pairs in LiCl Aqueous Solution by IR Ratio Spectra","authors":"Zeya Jin, Xiaowen Kong, Zhiqiang Wang, Ruiting Zhang, Lin Ma, Ke Lin","doi":"10.1007/s10953-023-01339-3","DOIUrl":"10.1007/s10953-023-01339-3","url":null,"abstract":"<div>The local structure and molecular interactions of Li+ salt in aqueous solutions is important in many fields. However, whether solvent shared ion pairs and the direct contact ion pairs exist in aqueous LiCl solutions or not, and the details about these ion pairs are still under debate. Here, we proposed a novel IR ratio method. Using this method, the hydration spectra of Cl− in LiCl, NaCl, and KCl aqueous solutions were measured from the diluted concentration to the highly concentrated solution. Hydration number of Cl− from the hydration spectra was determined to be ~ 2 in the aqueous LiCl. These data demonstrated that about 3–4 Li+ replaced some water molecules in the first hydration shell of Cl−. As the concentration of LiCl increased, an abnormal increase in the hydration number was observed. This is because the water molecule that bridges Li+ and Cl− in the solvent-shared ion pair are particularly stable, which was directly proven by the red shift of the hydration spectra of Cl− in the O–H stretching region. All the hydration spectra and hydration numbers not only applied to uncover the solvent shared ion pairs and direct contacted ion pairs in LiCl aqueous solution, but also can be employed to the benchmark of force fields in the classical molecular dynamics simulations.</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 3","pages":"431 - 448"},"PeriodicalIF":1.4,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524359","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}

引用次数: 0

Exploring the Effect of Ammonium Acetate on Volumetric, Viscometric and Conductive Properties of l-Aspartic Acid in Aqueous Medium at Different Temperatures 探讨不同温度下乙酸铵对l-天冬氨酸在水介质中体积、粘度和导电性能的影响

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-12-01 DOI: 10.1007/s10953-023-01335-7

Malabika Talukdar, Soumy Dey, Abhinandan Panda, Shreyasee Pan, Sulochana Singh

{"title":"Exploring the Effect of Ammonium Acetate on Volumetric, Viscometric and Conductive Properties of l-Aspartic Acid in Aqueous Medium at Different Temperatures","authors":"Malabika Talukdar, Soumy Dey, Abhinandan Panda, Shreyasee Pan, Sulochana Singh","doi":"10.1007/s10953-023-01335-7","DOIUrl":"10.1007/s10953-023-01335-7","url":null,"abstract":"<div>Study of some physicochemical properties of l-aspartic aid in water and aqueous ammonium acetate has been undertaken for this investigation. Density, viscosity and conductivity of the solutions were measured at different temperatures. Volumetric parameters such as apparent molar volume (({V}_{Phi })), partial molar volume (({V}_{Phi }^{0})), partial molar expansibility (({E}_{Phi }^{0})) and Hepler’s constant (({{partial }^{2}{V}_{Phi }^{0}/{partial T}^{2})}_{{p}})) and viscometric parameters such as relative viscosity({(eta }_{r })), viscosity coefficients ({(B}_{J }mathrm,{text{and} },{ A}_{F})), Gibbs free energy of activation of viscous flow of solvent and solute ({(Delta mu }_{1}^{#,0}mathrm,text{ and },{Delta mu }_{2}^{#,0})) respectively) and corresponding change in enthalpy ({Delta H}_{2}^{#,0}) and entropy ({Delta S}_{2}^{#,0}) have been derived from the experimentally measured density and viscosity values. Variation of these parameters with concentration and temperature was analysed in the light of ion–ion and ion–hydrophilic interactions. The possibility of ion pair formation and its effect on migration of charged particles in solution have been determined by analysing the molar conductance (Λm), association constant ({(K}_text{A})), Walden product and thermodynamic functions. These parameters were qualitatively correlated with changes in structure of water that occurs when l-Aspartic acid interacts with ammonium acetate in aqueous media.</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 3","pages":"387 - 415"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524348","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}

引用次数: 0

Evaluation of Distribution and Partition Coefficients of Levulinic Acid in Octanol-Water System at 298.15 K 298.15 K时乙酰丙酸在辛醇-水体系中的分布及分配系数评价

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-11-28 DOI: 10.1007/s10953-023-01345-5

Nur Aainaa Syahirah Ramli, Harissa Rania, Nur Azmina Roslan, Fadzlina Abdullah

{"title":"Evaluation of Distribution and Partition Coefficients of Levulinic Acid in Octanol-Water System at 298.15 K","authors":"Nur Aainaa Syahirah Ramli, Harissa Rania, Nur Azmina Roslan, Fadzlina Abdullah","doi":"10.1007/s10953-023-01345-5","DOIUrl":"10.1007/s10953-023-01345-5","url":null,"abstract":"<div>Levulinic acid is a promising building block chemical with various applications, such as in pharmaceuticals and cosmetics. The key parameters used for assessing the environmental fate, risk assessment and toxicity of a compound in these applications include partition and distribution behavior of the compound. The partition and distribution coefficients can be measured from the ratio of the compound concentration in 1-octanol to the concentration in water at equilibrium. In this study, the distribution and partition behavior of levulinic acid in octanol-water system were determined experimentally using a simple and inexpensive shake flask approach according to OECD 107 via UV–Vis spectroscopy at 298.15 K. The neat and mutually saturated solvents were applied in the determination of distribution and partition behavior. The distribution coefficient (log D) using neat solvents (octanol-water) and saturated solvents (octanol(water−saturated)-water(octanol−saturated)) were determined, and the partition coefficient (log P) was calculated accordingly based on the relationship between log D and log P for weakly acidic compounds. In octanol-water and octanol(water−saturated)-water(octanol−saturated) system, the log D of levulinic acid were determined to be − 0.574 and − 0.816, while the log P were − 0.554 and − 0.790, respectively. The precision of the method was established with variation in the measurement less than 0.03 for both log D and log P. The negative value of log P indicates the preference of levulinic acid for the water phase over the octanol phase. The results from this study can be comprehended in product formulation and design related to levulinic acid as well as assessing the environmental fate.</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 3","pages":"471 - 485"},"PeriodicalIF":1.4,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524347","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}

引用次数: 0

Mixed-Ligand Nickel(II) Complexes with Histidine and Cysteine in Aqueous Solution: Thermodynamic Approach 水溶液中组氨酸和半胱氨酸混合配体镍(II)配合物:热力学方法

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-11-27 DOI: 10.1007/s10953-023-01337-5

Dmitrii Pyreu, Sergei Gridchin

引用次数: 0

Solubility of 2-Hydroxybenzoic Acid in Pseudo-Binary Mixtures of Choline Chloride/Propylene Glycol Deep Eutectic Solvent + Water at 293.15–313.15 K 293.15 ~ 313.15 K时2-羟基苯甲酸在氯化胆碱/丙二醇深度共晶溶剂+水伪二元混合物中的溶解度

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-11-22 DOI: 10.1007/s10953-023-01336-6

Erfan Babaei, Parisa Jafari, Elaheh Rahimpour, Jalal Hanaee, Abolghasem Jouyban

引用次数: 0

Improved Solubility of Baclofen Using Suitable Coformers 使用合适的共聚物提高巴氯芬的溶解度

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-11-06 DOI: 10.1007/s10953-023-01333-9

Elaheh Pourabdollah, Elaheh Rahimpour, Abolghasem Jouyban, Anahita Fathi Azarbayjani

{"title":"Improved Solubility of Baclofen Using Suitable Coformers","authors":"Elaheh Pourabdollah, Elaheh Rahimpour, Abolghasem Jouyban, Anahita Fathi Azarbayjani","doi":"10.1007/s10953-023-01333-9","DOIUrl":"10.1007/s10953-023-01333-9","url":null,"abstract":"<div>This work presents the application of L-tartaric acid (L-TA), ascorbic acid (AA), and L-carnitine (L-CAR) as a safe and non-toxic alternative agent to enhance the aqueous solubility of baclofen (BAC). The solvent evaporation method was employed for co-crystallization in three stoichiometric ratios of the drug, coformer (1:1, 1:3, 1:5) and formulations were confirmed by X-ray diffractometry (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared (FT-IR). DSC study revealed the presence of both endothermic and exothermic peaks in compounds containing AA and L-TA. With respect to the BAC, L-TA and BAC, AA, the appearance of new diffraction peaks that do not overlap with un-processed BAC may be the implication of a new structure. The intensity of some diffraction peaks disappeared or reduced significantly which may also imply the formation of a new crystal phase. The solubility of the multicomponents increased and surpassed the solubility of BAC. Overall, the new compounds show significantly higher drug solubility whereas their physical mixtures only demonstrate a marginal increase in BAC solubility. The high solubility records of BAC, AA and BAC, L-TA evidence the marked difference in solubility of the new compounds with respect to their physical mixtures. The saturation solubility of BAC, L-CAR compound did not show any improvement relative to the un-processed BAC. These findings confirm that a new crystal phase may not have been obtained during the co-crystallization of BAC and L-CAR.</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 2","pages":"341 - 353"},"PeriodicalIF":1.4,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135590097","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}

引用次数: 0

Measurement and Prediction of Phase Equilibria of Quaternary System LiCl–KCl–SrCl2–H2O at 273.2 K and its Applications 273.2 K 下 LiCl-KCl-SrCl2-H2O 四元体系相平衡的测量和预测及其应用

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-10-28 DOI: 10.1007/s10953-023-01328-6

Hu Chen, Shi-Hua Sang, Chun-Xia He, Xiao-Feng Guo, Hong-Bao Ren

{"title":"Measurement and Prediction of Phase Equilibria of Quaternary System LiCl–KCl–SrCl2–H2O at 273.2 K and its Applications","authors":"Hu Chen, Shi-Hua Sang, Chun-Xia He, Xiao-Feng Guo, Hong-Bao Ren","doi":"10.1007/s10953-023-01328-6","DOIUrl":"10.1007/s10953-023-01328-6","url":null,"abstract":"<div>The underground brines in the Sichuan Basin of China are rich in lithium, potassium, strontium, chlorine, etc. In order to fully develop and utilize these brine resources, it is necessary to carry out phase equilibrium research about the quaternary system LiCl–KCl–SrCl2–H2O and develop a reasonable lithium extraction process. The quaternary system LiCl–KCl–SrCl2–H2O at 273.2 K were determined using the isothermal dissolution equilibrium method. As a result, the corresponding phase diagrams were drawn based on the data. The phase diagram shows that the quaternary system LiCl–KCl–SrCl2–H2O has no double salt or solid solution at 273.2 K and there are two invariant points, five univariate curves and four solid phase crystallization fields, which are LiCl·2H2O, SrCl2·2H2O, SrCl2·6H2O and KCl. Furthermore, Pitzer’s model was used to predict the solubility of salts in the quaternary system. The calculated values are in good agreement with the experimental ones. Finally, combined with isothermal evaporation method and the phase diagram of the quaternary system, a brine evaporation process was designed.\u0000</div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":"53 2","pages":"294 - 313"},"PeriodicalIF":1.4,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136233726","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}

引用次数: 0

[(EtO)3Si(CH2)3N+H3][CH3COO−] as Basic Ionic Liquid Catalyst Promoted Green Synthesis of Benzo[a]pyrano[2,3-c]phenazine Derivatives in Homogenous Solution 以[(EtO)3Si(CH2)3N+H3][CH3COO-]为碱性离子液体催化剂在均相溶液中促进苯并[a]吡喃并[2,3-c]吩嗪衍生物的绿色合成

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-10-26 DOI: 10.1007/s10953-023-01332-w

Farhad Shirzaei, Hamid Reza Shaterian

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Binary and Ternary Oxovanadium (IV) Complexes with Picolinic Acid and Some Potentially Bidentate Amino Acids Studied by Potentiometric Measurements in 1.0 mol·dm−3 NaCl at 25 °C 在 25 °C 的 1.0 mol-dm-3 NaCl 溶液中通过电位测量法研究吡啶甲酸和一些潜在双齿氨基酸与氧化钒 (IV) 的二元和三元络合物

IF 1.4 4区化学

Journal of Solution Chemistry Pub Date : 2023-10-23 DOI: 10.1007/s10953-023-01331-x

Sabrina Rodríguez, Mary Lorena Araujo, Edgar Del Carpio, Lino Hernández, Vito Lubes

引用次数: 0