Results 181 to 190 of about 24,790 (199)
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Determination of conditional stability constants of cadmium-humic acid complexes in freshwater by use of a competitive ligand equilibration-solvent extraction technique

Environmental Toxicology and Chemistry, 2000
Abstract A technique for determining organic complexation of cadmium in freshwater using competitive ligand equilibration coupled with solvent extraction was evaluated. The method involves a competitive equilibration of the sample with potassium iodide and pyridine followed by extraction of the mixed cadmium-iodide-pyridine complex into ...
van Ginneken, L., Blust, R.
openaire   +2 more sources

The Influence of Alkyl Chain Length and Steric Effect on the Stability Constants and Extractability of Co(II) Complexes with 1-Alkyl-2-Methylimidazoles

Separation Science and Technology, 2014
Using the liquid-liquid partition method, the formation of Co(II) complexes with 1-alkyl-2-methylimidazoles (where alkyl = C4H9 trough C12H25) at 25°C and at a fixed ionic strength of the aqueous phase (I = 0.5, (HL)NO3, KNO3) were studied. Dichloromethane, trichloromethane, and 2-ethylhexanol were used as diluents.
Elzbieta Radzyminska-Lenarcik   +1 more
openaire   +1 more source

Trace Metal Complexation by Fulvic Acid Extracted from Sewage Sludge: I. Determination of Stability Constants and Linear Correlation Analysis

Soil Science Society of America Journal, 1981
Abstract The complexes formed between either Cd 2+ or Pb 2+ and fulvic acid extracted from sewage sludge mixtures were investigated by potentiometric titration of K/H fulvate with either Cd(ClO 4
Garrison Sposito   +2 more
openaire   +1 more source

High selectivity, capacity and stability for electrochemical lithium extraction on boron-doped H1.6Mn1.6O4 by tailoring lattice constant and intercalation energy

Water Research
A sustainable supply of lithium from salt-lake brines is necessary due to the surge in demand of the lithium-battery market. However, the presence of coexisting ions, particularly Na+, poses a significant challenge due to the similarities in charge, electronic structure, and hydrated size.
Gang, Liao   +7 more
openaire   +2 more sources

Stability constants and free energies of complexation of metal-ion cryptates in nitromethane. Derived parameters for the extraction of cations by cryptand 222 from water to pure nitromethane

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1985
Stability constants have been measured and free energies of complexation of alkali-metal and silver cations in nitromethane at 298 K have been derived. The results obtained in this solvent are compared with corresponding data in different reaction media. Free energies of transfer of metal-ion cryptates from water to nitromethane are derived.
Angela F. Danil de Namor   +2 more
openaire   +1 more source

Determining Stability Constants Using the AKUFVE Technique

Solvent Extraction and Ion Exchange, 2019
Christian Ekberg, Mikael Nilsson
exaly  

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