Thermodynamic properties determination of ternary mixture (NaCl+Na2HPO4+water) using potentiometric measurements

Activity Coefficient Measurements and Thermodynamic Modeling of (CaCl2 + l-Alanine + Water) System Based on Potentiometric Determination at T = (298.2, 303.2, and 308.2) K

“…The PSC model was also used for this ternary system. It introduces composition-dependent terms into the Debye–Hückel expression, and additional short-range parameters for the interaction between the solvent and a single anion and cation in highly concentrated solutions. − Briefly, in the PSC model, the activity coefficients based on mole fractional scale are expressed by the contribution of short-range (ln f ± S ) and long-range (ln f ± DH ) forces: , …”

“…In this work, the results relating to the mean activity coefficient measurements for CaCl 2 in the l -alanine + water mixtures using the potentiometric method were reported at T = (298.2, 303.2, and 308.2) K and P = 0.1 MPa. This paper is the continuation of the research on ternary and quaternary electrolyte solutions. − The potentiometric measurements were carried out on a galvanic cell containing a solvent polymeric membrane (Ca–ISE) which treated by carbon nanotubes and Ag–AgCl electrodes over the ionic strength ranging from 0.0100 mol·kg –1 to 3.0000 mol·kg –1 for different series of the molality of l -alanine ( m A = 0.0 mol·kg –1 , 0.1 mol·kg –1 , 0.2 mol·kg –1 , 0.3 mol·kg –1 , and 0.4 mol·kg –1 ). The results were interpreted based on Debye–Hückel extended equation, Pitzer ion interaction and PSC models.…”

Analysis of complexation between new bidentate bis-NHC ligand and some metal cations at different temperature

“…To determine the stability, selectivity and stoichiometry of NHCL-M n+ complexes with different metal cations, the conductometric technique was chosen [26]. This technique has several advantages such as great sensitivity [27], low cost [28] as well as simple experimental arrangement [29] compared with other techniques such as spectrophotometry, calorimetry [30], and NMR spectroscopy [31], and potentiometry [32][33][34][35]. The sensors based on electrochemical methods have been used to measure the analyte concentrations in water samples.…”

Thermodynamic properties determination of aqueous mixtures of CaCl2 and Ca(NO3)2 by the potentiometric method at T= 298.15 ± 0.1 K

“…In recent years, there has been an increasing amount of work investigating the thermodynamic properties of mixed aqueous electrolyte solutions, particularly at high total ionic strengths [1][2][3][4]. This is because in many fields including chemistry, chemical engineering, biology, geology, atmospheric science, and food processing thermodynamic properties of mixed aqueous electrolytes are important [5][6][7].…”