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334 Newest Publications about the topic solution

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Critical Evaluation of the Second Dissociation Constants for Aqueous Sulfuric Acid over a Wide Temperature Range

13-09-2013 | Hannu Sippola, Journal of Chemical & Engineering Data, 2013

The scope of this article is to study the ability of different equations for K2 and different sets of Pitzer parameters to model the thermodynamic properties of the H2SO4–H2O system over a wide temperature range. Three Pitzer parameters are found essential in modeling aqueous sulfuric acid, ...

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Re-evaluation of the Mean Activity Coefficients of Strontium Chloride in Dilute Aqueous Solutions from (10 to 60) °C and at 25 °C up to the Saturated Solution Where the Molality Is 3.520 mol·kg–1

11-09-2013 | Jaakko I. Partanen, Journal of Chemical & Engineering Data, 2013

In the present study, two Hückel equations have been determined for the calculation of the mean activity coefficients of SrCl2 in pure aqueous solutions at 25 °C. The two-parameter equation with parameters B and b1 gives a good fit up to an ionic strength (= Im) of 2.0 mol·kg–1, and the ...

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Volumetric, Viscometric, and Refractive Index Behavior of 7-Hydroxy-4-methylcoumarin in Aqueous Ethanol or 1-Propanol Solutions in the Temperature Range of (293.15 to 313.15) K

04-09-2013 | Aiju Chen; Min Liu; Yan Zheng; Dezhi Sun; Bingquan Wang; Liping Wang, Journal of Chemical & Engineering Data, 2013

Densities and viscosities of the pseudo binary system 7-hydroxy-4-methylcoumarin + (ethanol or 1-propanol) + water at temperatures of (293.15, 298.15, 303.15, 308.15, and 313.15) K and refractive indices of this system at T = 298.15 K have been measured as a function of the molality of ...

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Study on the Phase Equilibrium of the Reciprocal Quaternary System Cd2+, K+//Cl–, SO42––H2O at 298 K

04-09-2013 | Yi Huang; Shi-jun Ni; Fang Zou; Shihua Sang, Journal of Chemical & Engineering Data, 2013

The solid–liquid equilibrium of reciprocal quaternary system Cd2+, K+//Cl–, SO42––H2O at 298 K was studied by an isothermal solution saturation method. Experimental results indicate that there are nine univariant curves F2E2, F4E4, E2E1, F3E1, E1E3, F5E3, F1E3, F6E4, and E4E2, four invariant ...

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Determination and Correlation of Solubilities of (S)-Indoline-2-carboxylic Acid in Six Different Solvents from (283.15 to 358.15) K

04-09-2013 | Jin-Qiang Liu; Xin-Xiang Cao; Baoming Ji; Bangtun Zhao, Journal of Chemical & Engineering Data, 2013

The solubilities of (S)-indoline-2-carboxylilc acid (SIn2CA) in six pure solvents including water, methanol, ethanol, 1-propanol, 2-propanol, and 1-butanol were determined from (283.15 to 358.15) K at atmospheric pressure using the synthetic method. The solubility was determined by a laser ...

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Phase Equilibrium of the Quaternary System Na2SO4–MgSO4–(NH4)2SO4–H2O at 0 °C

04-09-2013 | Jing Zhang; Hong-Fei Guo; Ji-Lin Cao; Rui-Jie Fan, Journal of Chemical & Engineering Data, 2013

The solubilities of the ternary system MgSO4–(NH4)2SO4–H2O and the quaternary system Na2SO4–MgSO4–(NH4)2SO4–H2O at 0 °C were measured, and the phase diagrams of these two systems were plotted. On the basis of the phase diagrams obtained, we analyzed each saturation point and crystalline region. ...

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Thermodynamics Phase Equilibria for the System Containing Lithium, Sodium, Chloride, and Carbonate in Aqueous Solution at 273.15 K

30-08-2013 | Xudong Yu; Ying Zeng; Pengtao Mu; Qinghong Yin; Qi Tan, Journal of Chemical & Engineering Data, 2013

The mixed aqueous electrolyte system containing lithium, sodium, chloride, and carbonate has been investigated using the isothermal evaporation method at 273.15 K. The stereophase diagram and the planar projection diagram have been constructed based on the Jänecke method. The compositions of the ...

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Phase Equilibria and Phase Diagrams for the Aqueous Ternary System (Na2SO4 + Li2SO4 + H2O) at (288 and 308) K

19-08-2013 | Yafei Guo; Yuanhui Liu; Qin Wang; Chenxiao Lin; Shiqiang Wang; Tianlong Deng, Journal of Chemical & Engineering Data, 2013

The solubility and density of the thermodynamic phase equilibria ternary system (Na2SO4 + Li2SO4 + H2O) at (288 and 308) K were determined using the isothermal dissolution method. According to the experimental results of the ternary system at (288 and 308) K, the phase diagrams and the diagrams ...

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Thermodynamics of Solution of Hemato- and Deuteroporphyrins in N,N-Dimethylformamide

13-08-2013 | Andrey V. Kustov; Mikhail B. Berezin, Journal of Chemical & Engineering Data, 2013

This paper focuses on the results of the first accurate study of thermodynamics of solution for two blood porphyrins in the model of a protein-like environment–liquid N,N-dimethylformamide (DMF) in the physiological temperature range. The solubility of hematoporphyrin dimethylether dimethylester ...

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Physicochemical Studies on the Micellization of Cationic, Anionic, and Nonionic Surfactants in Water–Polar Organic Solvent Mixtures

08-08-2013 | Sibani Das; Satyajit Mondal; Soumen Ghosh, Journal of Chemical & Engineering Data, 2013

The effect of cosolvent (ethane-1,2-diol and dimethyl sulfoxide) on the self-assembly of three surfactants, N,N,N-trimethyl-1-dodecanaminium bromide (DTAB), sodium [dodecanoyl(methyl)amino]acetate (SDDS), and polyoxyethylene (20) sorbitan monolaurate (Tween-20) in aqueous solution have been ...

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