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Hexafluorosilicate Salts in Wet Phosphoric Acid Processes: Properties of X2SiF6–H2O with X = Na+, K+, or NH4+ in Aqueous Solutions at 353.15 K

21-Apr-2016 | Mohamed El Guendouzi; Mourad Skafi; Ahmed Rifai, Journal of Chemical & Engineering Data, 2016

During the production of phosphoric acid in wet processes, the acid and salts of fluorosilicates are formed in turn by inducing the problem of fouling. The knowledge of the physical–chemical properties of hexafluorosilicates allows a better understanding of process governing complex equilibria in ...


Phase equilibria of AlCl3 + FeCl3 + H2O, AlCl3 + CaCl2 + H2O, and FeCl3 + CaCl2 + H2O at 298.15 K

21-Apr-2016 | Mengxia Yuan; Xiuchen Qiao; Jianguo Yu, Journal of Chemical & Engineering Data, 2016

In the recovery of aluminum from coal fly ash, the phase equilibria of solid–liquid systems are important for purifying the aluminum salts. This research investigated phase equilibria of the ternary systems AlCl3 + CaCl2 + H2O, AlCl3 + FeCl3 + H2O, and FeCl3 + CaCl2 + H2O at 298.15 K using ...


Solubility of Ethyl p-Aminobenzoate in Six Alcohols within (283.15 to 327.15) K

12-Apr-2016 | Hongjie Xu; Zuoxiang Zeng; Weilan Xue; Kun Li, Journal of Chemical & Engineering Data, 2016

The solubility of ethyl p-aminobenzoate (EPAB) was measured in six different alcohols (methanol, ethanol, n-propanol, n-butanol, isobutyl alcohol, isoamyl alcohol) within (283.15 to 327.15) K by the last solid disappearance method. The solubility increases with increasing temperature. The ...


Thermodynamics of 1,3-Dimethylurea in Eight Alcohols

29-Mar-2016 | Peipei Zhu; Yanxin Chen; Yanan Zhou; Yan Xiao; Jinbo Ouyang; Xin Huang; Gaohong He; Baohong Hou; Wei Chen, Journal of Chemical & Engineering Data, 2016

In this work, solubility data of 1,3-dimethylurea (DMU) in methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, and 1-octanol were measured by synthetic method from T = 288.15 to 328.15 K at ordinary pressure. It turned out that the solubility data increased as temperature ...


Volumetric Properties and Viscosity B-Coefficients for the Ternary Systems Epigallocatechin Gallate + MCl + H2O (M = Li, Na, K) at Temperatures 288.15–308.15 K

29-Mar-2016 | Dawei Li; Guangqian Li; Pingfeng Bian; Zhe Shen; Mengfan Fu; Wenjun Fang; Weidong Yan, Journal of Chemical & Engineering Data, 2016

Epigallocatechin gallate (EGCG) is the most abundant and active components in tea. In this text, the density and viscosity of ternary aqueous solution of EGCG containing LiCl/NaCl/KCl were determined at temperatures ranging from 288.15 to 308.15 K at atmospheric pressure. The density data was ...


Solubility Measurement and Correlation of (+)-Biotin Intermediate Lactone in Different Organic Solvents from 287.15 to 323.75 K

24-Mar-2016 | Yun-Long Shi; Chao Qian; Xin-Zhi Chen, Journal of Chemical & Engineering Data, 2016

The solubilities of (+)-biotin intermediate lactone in methanol, toluene, tetrahydrofuran, dichloromethane, ethyl acetate, and N,N-dimethylformamide were determined at the investigated temperatures 287.15–323.75 K under pressure (p = 0.1 MPa) by a laser monitoring system. The solubilities of ...


Investigation on the Interactions of Poly(ethylene oxide) and Ionic Liquid 1-Butyl-3-methyl-imidazolium Bromide by Viscosity and Spectroscopy

22-Mar-2016 | Abbas Mehrdad; Zahra Niknam, Journal of Chemical & Engineering Data, 2016

In this research, the solution of poly(ethylene oxide) in binary mixtures of water and ionic liquid, 1-butyl-3-methyl imidazolium bromide, were studied via spectroscopic and viscometric at the temperature range of 288.15–313.15 K. Also, the effects of ionic liquid, 1-butyl-3-methyl imidazolium ...


Measurement and Correlation of Solubilities and Solution Thermodynamics for N,N-Diethylformamide + MCl (M = Na, K, Rb, and Cs) + Water Systems in the Temperature Range 288.15–338.15 K

10-Mar-2016 | Yunxue Gao; Dandan Zhao; Shuni Li; Quanguo Zhai; Yucheng Jiang; Mancheng Hu, Journal of Chemical & Engineering Data, 2016

The (solid + liquid) equilibrium (SLE) of N,N-diethylformamide (DEF) + MCl (M = Na, K, Rb) + H2O ternary systems were investigated from 288.15 to 338.15 K under atmospheric pressure. The isothermal solubility, density, and refraction index of the ternary solution, as well as the solubility at ...


Using Molecular Simulations To Develop Reliable Design Tools and Correlations for Engineering Applications of Aqueous Electrolyte Solutions

08-Mar-2016 | Kevin R. Hinkle; Cynthia J. Jameson; Sohail Murad, Journal of Chemical & Engineering Data, 2016

Many industrial processes involve processing aqueous electrolyte solutions. There is thus a need for accurate theories to predict their thermophysical properties. Recent studies have shown that the size of the hydrated ion plays an important role in determining these properties. In this study, we ...


Recovery of Methacrylic Acid from the Aqueous Phase Using Trioctylmethylammonium Chloride (TOMAC) in Different Diluents

07-Mar-2016 | Akanksha Swarnkar; Amit Keshav; A. B. Soni, Journal of Chemical & Engineering Data, 2016

Methacrylic acid and its derivatives are used in the manufacture of important industrial polymeric products. They have a variety of industrial applications including plastics, thickening agents, surfactants, and chelating agents, etc. In the present work, equilibrium extraction of methacrylic ...


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