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Showing 1 to 18 of 18 for “"Potentiometric titrations"”.
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Elucidation of Battery Electrolyte Coordination Sphere Thermodynamics via Calorimetric and Potentiometric Titrations
… isothermal titration calorimetry (ITC) and potentiometric titrations (PT) were employed with a set of exemplar electrolytes to probe the thermodynamic evolution of the Li+ coordination complex as weak solvent is displaced by a stronger solvent in the first coordination sphere. Raman …
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I. Automatic Differential Potentiometric Titrations. Ii. The Determination of Chloride in Titanium Sponge
Made available in DSpace on 2014-12-05T19:36:17Z (GMT). No. of bitstreams: 1 0015203.pdf: 5099442 bytes, checksum: 14b020ebe8a88137e51153b389695ebe (MD5) Previous issue date: 1955
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The potentiometric determination of the formation constants of a novel class of macrocyclic polyaminocarboxylic acid ligands and the formation constants of the mercury(II)-glutathione complexes
Potentiometric titrations were used to determine the thermodynamic formation constants of the complexes of newly synthesized macrocyclic polyaminocarboxylic acid ligands with selected metal ions. The formation constants were calculated with the help of a computer modeling program, BEST. Protonated …
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Electrochemical studies in anhydrous formic acid
… the measurement of transport numbers and potentiometric titrations. The conductance measurements were made almost entirely by Schlesinger and his co-workers. The conductivities of ammonium, alkali and alkaline earth formates as well as hydrogen chloride solutions in anhydrous formic acid …
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Significance of pH and pCl in heavy metal ion reactions and mercury (II) adsorption by soil materials
… any significant amounts of exchangeable Ca. Potentiometric titrations were performed first on Hg(II)-chloride solutions after an iterative procedure was developed for predicting such titrations. Titrations of Hg(II) in presence of different chloride concentrations were quantitative and …
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An improved understanding of fluorescent Zn(II) sensors and their uses in biological settings
… and emission spectroscopy, in combination with potentiometric titrations, produced a detailed molecular picture of the Zn2+ and H+ binding properties of the ZP1 family of sensors. The two separate N30 donor atom sets on ZP1 converge to form binding pockets in which all four heteroatoms …
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An Improved MUSIC Model for Gibbsite
… have purported to achieve a very good fit with potentiometric titration data. However, in order to achieve such results, several significant parameters, such as the number of surface sites, site densities, and pKa values were sometimes re-introduced in the model as fitted parameters, and …
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Some aspects of the interaction of humic substances with metal ions
… size distribution of humic substances. In potentiometric titrations of humate dispersions, the organic matter responds slowly and the mineral acid addition is buffered. Proton concentration data is modelled and a mechanism is proposed involving two key stages, both resulting in proton …
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Speciation of inorganic aluminum solutions and modeling their kinetics and mechanisms of adsorption on selected solids
… theory, analysis of desorbed Ca effluent, and potentiometric titrations of effluent solutions. The occurrence of two mechanisms for Al adsorption on montmorillonite and peat was also evident. Polymeric Al was preferentially adsorbed by kaolinite throughout the displacement experiment whereas …
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Synthesis and characterization of soluble, high temperature aromatic polyimides
… cyclodehydrated as determined by non-aqueous potentiometric titrations, possessed molecular weight distributions very close to the theoretical value of 2.0 and displayed glass transition temperatures consistent with accepted values for the same materials synthesized via conventional methods. …
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The effect of inositol-hexakisphosphate (phytate) on urinary risk factors for calcium oxalate urolithiasis in South African population groups with different kidney stone risk profiles : theoretical modelling, in vitro crystallisation experiments and in vivo human studies
… relative rarity of urolithiasis in this group. Potentiometric titrations were conducted to determine thermodynamic binding constants of soluble calcium-phytate complexes. Binding constants of seven complexes were identified. These were included in the data base of the Joint Experts Speciation …
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Studio di complessi di rame (II) e platino (II) con proprietà antitumorali
… of the complexes have been determined through potentiometric titrations. The dipole moments of the platinum complexes have been determined through quantum mechanical calculations. The in vitro cytotoxic activity of ligands and metal complexes has been evaluated against a panel of human tumour …
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Acidity of certain Virginia soils as related to their mineralogy and chemistry
… charged hydroxy-Al groups third range). The potentiometric titration of the soils in <i>N</i> KCl do not show significant inflections for the third buffer range. Variations in the rate of titration and in temperature did not seem to influence the inflection for the third buffer range. The …
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Star-shaped Polyelectrolytes
… behavior of the obtained PAA stars was analyzed. Potentiometric titrations indicate a decrease of PAA’s acidity when increasing the arm number whereas a slight increase of the acidity was observed when increasing the molecular weight by increasing the length of the arms at constant arm number. The …
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Ion specific effects on charged interfaces
… potential (ζ) of BSA were determined by means of potentiometric titrations (PT) and electrophoretic light scattering (ELS), respectively. The measurements were carried on as a function of the pH and the ionic strength of the background electrolyte (NaCl) used in the measurements. The isoionic …
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Micelles and Interpolyelectrolyte Complexes formed by Polyisobutylene-block-Poly([meth]acrylic acid) - Synthesis of Polymers and Characterization in Aqueous Solutions
… PIB block of the copolymers used in this work. Potentiometric titrations also show an effect of the ionic strength on the apparent pKa value, shifting it to lower values with increasing cNaCl, while the length of the hydrophilic block seems to play a minor role. For the evaluation of the cmc for …
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ΡΥΘΜΙΣΗ ΤΩΝ ΕΠΙΦΑΝΕΙΑΚΩΝ ΦΟΡΤΙΩΝ ΚΑΤΑΛΥΤΙΚΩΝ ΦΟΡΕΩΝ ΜΕ ΤΗ ΧΡΗΣΗ ΤΡΟΠΟΠΟΙΗΤΩΝ
… OF THE CHARGED SURFACE GROUPS, DETERMINED POTENTIOMETRICALLY, OVERA WIDE PH RANGE. THE ADSORPTION OF IONIC SPECIES CONTAINING THE CATALYTICALLY ACTIVE IONS MO(VI), CO(II) AND NI(II), ON THE SURFACE OF PURE Γ-AL2O3 AND THE DOPED CARRIERS HAS BEEN STUDIED. CONCERNING THE ADSORPTION OF THE …