Journal Title
Title of Journal: J Solution Chem
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Abbravation: Journal of Solution Chemistry
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Authors: Daniela Ž Popović Jelena Miladinović Joseph A Rard Zoran P Miladinović Snežana R Grujić
Publish Date: 2016/01/20
Volume: 45, Issue: 9, Pages: 1261-1287
Abstract
Isopiestic measurements have been made for aqueous mixtures of Na2HPO4 and K2HPO4 at T = 29815 ± 001 K at Na2HPO4 ionic strength fractions y = 02023 04060 06027 08007 and 1 using KClaq as the reference standard solution The resulting 48 molalitybased osmotic coefficients for the ternary mixtures were modeled with an extended form of Pitzer’s ioninteraction model with the usual Pitzer mixing terms and also with Scatchard’s neutralelectrolyte model mixing terms along with the Clegg–Pitzer–Brimblecombe equations based on the molefractioncomposition scale There are no previously published isopiestic measurements for this ternary system Model parameters for Na2HPO4aq at T = 29815 K were also evaluated using the present isopiestic results 12 values along with three other sets of osmotic coefficients from isopiestic measurements taken from the published literature and all four sets of osmotic coefficients are in good agreement model parameters for K2HPO4aq are already available from our earlier work Popović et al in J Solution Chem 40907–920 2011 For this ternary system only one mixing parameter is needed for each of the three models because the ionic strength dependences of the osmotic coefficients of Na2HPO4aq and K2HPO4aq are very similar as expected from their very similar chemistry with the two variants of the extended Pitzer model giving slightly better representations of the experimental results than the Clegg–Pitzer–Brimblecombe model Maximum differences in calculated values of mean molalitybased activity coefficients for these three models are ∆γ ±Na2HPO4 ≤0004 and ∆γ ±K2HPO4 ≤0008 for ionic strengths I m ≤ 20 mol·kg−1 with the largest differences occurring for the trace and neartrace activity coefficients of one solute in a solution of the other solute at higher ionic strengths and solutions rich in K2HPO4 at intermediate ionic strengths These new results complement our earlier investigations of aqueous commoncation mixtures of K2HPO4 with KCl KBr KNO3 and K2SO4
Keywords:
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- Inclusion Complexes of Cyclodextrins with Galangin: a Thermodynamic and Reactivity Study
- Determination of Activation Energy for the Diffusion of Fe 3+ Ions in Agar Gel Medium Containing Various Transition Metal Sulfates
- NMR Study of the Exchange Kinetics of 30-Crown-10 Complexes with Sr 2+ and Ba 2+ Cations and Crystal Structure of the 30-Crown-10 Complex with Barium Perchlorate
- A Study of the Excess Properties of Aliphatic Chlorinated Compounds with Benzylalcohol at Various Temperatures
- Liquid–Liquid Equilibria of the Methanol + Toluene + Methylcyclohexane Ternary System at 278.15, 283.15, 288.15, 293.15, 298.15 and 303.15 K
- Complexation of Am(III) and Nd(III) by 1,10-Phenanthroline-2,9-Dicarboxylic Acid
- Diffusion Coefficients for the Ternary System Water + Chloroform + Acetic Acid at 25 °C
- Binding Mechanism of Bioactive Cetirizine Hydrochloride to Sudlow’s Site I of Serum Albumins
- Electroluminescent Properties of LECs Based on Ionic Transition Metal Complexes Using Tetrazole-Based Ancillary Ligand
- High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF 6 ]
- Solvent Effects on the Protonation Constants of Some α -Amino Acid Esters in 1,4-Dioxane–Water Mixtures
- Lanthanide Complexes with Allyl Acetoacetate in Mixed Water–Organic Media: Formation, Stability and Bonding
- A Study on Host–Guest Complexation of 5-Amino-2-Mercaptobenzimidazole with β -Cyclodextrin
- The Mixing Enthalpy Interaction Coefficients of N , N ′-Hexamethylenebisacetamide with l -Alanine and l -Serine in Aqueous Glucose Solutions at 298.15 K
- Effect of Temperature on Salt–Salt Aqueous Biphasic Systems: Manifestations of Upper Critical Solution Temperature
- Studies on Intermolecular Interactions in Liquid Mixtures of Alkoxyalkanols and Branched Alcohols by Volumetric and Acoustic Measurements at Different Temperatures
- Li + Transport Mechanism in Oligo(Ethylene Oxide)s Compared to Carbonates
- Thermodynamics of concentrated electrolyte mixtures. I. Activity coefficients in aqueous NaCl−CaCl 2 at 25°C
- Study of the Association Behavior Between Bromophenol Blue and Octylphenol Polyoxyethylene Ether (10) in Aqueous Solution and the Solubilization of Bromophenol Blue by Micelles
- Kinetics and Mechanism of the Reactions Between Triphenylphosphine, Dialkyl Acetylenedicarboxilates and a NH-Acid, Pyrazole, by UV Spectrophotometry
- Isopiestic Determination of the Osmotic and Activity Coefficients of Li 2 SO 4 (aq) at T =298.15 and 323.15 K, and Representation with an Extended Ion-Interaction (Pitzer) Model
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- First Hydrolysis Constant of Lutetium (III) by Solvent Extraction
- Volumetric Properties of the Nucleoside Thymidine in Aqueous Solution at T = 298.15 K and p = (10 to 100) MPa
- Spinodal Composition of the System Water + Chloroform + Acetic Acid at 25 °C
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- A Thermodynamic Study on the Binding of Cobalt(II) and Iron(III) Ions with Bovine Carbonic Anhydrase II at Different Temperatures
- Solubility of Omeprazole Sulfide in Different Solvents at the Range of 280.35–319.65 K
- Chemical Equilibria Modeling of Calcium Phosphate Precipitation and Transformation in Simulated Physiological Solutions
- Ionic Strength Effect on the Stability of the V(V) + IDA Complex
- Viscosities for Ionic Liquid Binary Mixtures with a Common Ion
- Kinetics and Mechanism for Hydrolysis of α -Amino Acid Esters in Mixed Ligand Complexes with Zn(II)–Nitrilo-tris(methyl phosphonic Acid)
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