Results 11 to 20 of about 828,088 (215)

Solubility Data and Computational Modeling of Baricitinib in Various (DMSO + Water) Mixtures

open access: yesMolecules, 2020
The solubility and thermodynamic analysis of baricitinib (BNB) in various dimethyl sulfoxide (DMSO) + water mixtures were performed. The “mole fraction solubilities (xe)” of BNB in DMSO and water mixtures were determined at “T = 298.2–323.2 K” and “p = 0.
Saad M. Alshahrani, Faiyaz Shakeel
doaj   +1 more source

A multi-ion diffusion model through clay barriers under combined action of chemical and diffusion potential

open access: yesRock and Soil Mechanics, 2022
Diffusion is an important phenomenon that governs contaminant transport through compacted clay liner at the bottom of landfill. The diffusion process is influenced by many factors, i.e., type, valence and concentration of ions.
ZHANG Zhi-hong, HAN Lin, LÜ Qing-shuo
doaj   +1 more source

Correlation and Prediction of Thermodynamic Properties for Quaternary Ammonium Salt Types by Applying the Modified Nonelectrolyte UNIQUAC-NRF Model [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The osmotic and activity coefficients of quaternary ammonium salt types are correlated and predicted by applying a modified nonelectrolyte UNIQUAC-NRF equation.
Ali Hosseini Eghbal   +1 more
doaj   +1 more source

Separation processes, I: Azeotropic rectification [PDF]

open access: yesHemijska Industrija, 2005
In a series of two articles, the problems of azeotrope separation (part I) and the design of separation units (part II) were analyzed. The basic definition and equations of vapour-liquid equilibria for ideal and non-ideal systems, the importance of the ...
Milojević Svetomir
doaj   +1 more source

Synthesis, Characterization and Solubility Determination of 6-Phenyl-pyridazin-3(2H)-one in Different Pharmaceutical Solvents

open access: yesMolecules, 2019
The current research work proposed the solubility data and solution thermodynamic properties of the cardiovascular agent 6-phenylpyridazin-3(2H)-one [PPD] in twelve pharmaceutical solvents at “T = 298.2 K to 318.2 K” and “p = 0.1 MPa ...
Faiyaz Shakeel   +4 more
doaj   +1 more source

Missteps in the Analytical Formula of Smaller-Ion Shell Model

open access: yesElectrochemistry, 2021
Recently, a smaller-ion shell (SiS) model was developed to describe the electrostatic interaction between ions in solutions (D. Fraenkel, Mol. Phys., 108, 1435 (2010)).
Yu SUGIMOTO
doaj   +1 more source

An Evaluation of Four Electrolyte Models for the Prediction of Thermodynamic Properties of Aqueous Electrolyte Solutions [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2017
In this work, the performance of four electrolyte models for prediction the osmotic and activity coefficients of different aqueous salt solutions at 298 K, atmospheric pressure and in a wide range of concentrations are evaluated. In two of these models, (
Kamalodin Momeni   +2 more
doaj   +1 more source

MODELING AND EXPERIMENTAL DATA VALIDATION OF VAPOR LIQUID EQUILIBRIA (VLE) FOR ABSORPTION AND DISTILLATION

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2021
The model combing the method UNIFAC with various model methods was applied for calculation of activity coefficients in an VLE model for hexaflourobenzene(1) benzene(2) at 333.15K, butanol(1) tetrachloroethene(2) at 101.08 kPa, carbondioxide(1) 3-pentanol(
M. Aslam ABDULLAH, Bandaru KIRAN
doaj   +1 more source

Determinação do coeficiente de atividade na diluição infinita () através da micro-extração em fase sólida (SPME) Determination of activity coefficients at infinite dilution through solid phase microextraction (SPME)

open access: yesQuímica Nova, 2007
In this study a new approach, solid phase micro extraction (SPME), is used in the evaluation of the infinite dilution activity coefficient of the solute in a given solvent.
Douglas B. Fonseca, Gerson L. V. Coelho
doaj   +1 more source

Mineral Extraction from Mixed Brine Solutions

open access: yesSeparations
Sulfate minerals (SMs), such as BaSO4, SrSO4, and CaSO4, precipitate when incompatible solutions from the oil industry, such as seawater (SW) and high-salinity brine solutions (HSBSs), are mixed during the oil production process.
M. A. Salman   +3 more
doaj   +1 more source

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