Results 11 to 20 of about 149,041 (310)

Physico-chemical studies of some aminobenzoic acid hydrazide complexes [PDF]

Journal of the Serbian Chemical Society, 2004
The stability constants and related thermodynamic functions characterizing the formation of divalent Ni, Cu, Zn, Cd and Hg complexes with o- and p-aminobenzoic acid hydrazide were determined potentiometrically at different temperatures. The formations of
El Abd Wahed M.G., El Abd Wanees S., El Gamel M., El Abd Haleem S.   +3 more
doaj   +3 more sources

Thermodynamic and Spectroscopic Studies of the Complexes Formed in Tartaric Acid and Lanthanide(III) Ions Binary Systems

Molecules, 2020
Binary complexes of tartaric acid with lanthanide(III) ions were investigated. The studies have been performed in aqueous solution using the potentiometric method with computer analysis of the data for detection of the complexes set, determination of the
Michal Zabiszak, Martyna Nowak, Zbigniew Hnatejko, Jakub Grajewski, Kazuma Ogawa, Malgorzata T. Kaczmarek, Renata Jastrzab   +6 more
doaj   +1 more source

Surface Complexation of Chromium(VI) on Iron(III) Hydroxide: Mechanisms and Stability Constants of Surfaces Complexes

Indonesian Journal of Chemistry, 2021
The adsorption of chromate ions H2-yA (y = 1, 2, and A = CrO42–) on iron(III) hydroxide was conducted as a function of adsorbent mass, solution pH, and hydration time.
Mhamed Hmamou, Fatima Ezzahra Maarouf, Bouchaib Ammary, Abdelkebir Bellaouchou   +3 more
doaj   +1 more source

SupraFit - An Open source Qt based fitting application to determine stability constants from titration experiments [PDF]

, 2022
A novel application to determine stability constants from supramolecular titration experiments is presented. The focus lies on NMR titration and ITC experiments for pure 1:1 systems, as well as mixed 2:1/1:1, 1:1/1:2 and 2:1/1:1/1:2 systems.
Conrad, Hübler
core   +1 more source

A study on stabilization of operation time for hydraulic operating circuit breaker (Stability of hydraulic operation stabilizing system holding constant high pressure)

Nihon Kikai Gakkai ronbunshu, 2016
Stability of a hydraulic operation stabilization system during valve returning motion was investigated by the measurement and numerical analysis of the hydraulic circuit.
Tohru YAMASHITA, Nobuya NAKAJIMA, Yoshiki HIRANO, Tsutomu SUGIYAMA, Toshiaki YOSHIZUMI   +4 more
doaj   +1 more source

Computational Predictions of Metal-Macrocycle Stability Constants Require Accurate Treatments of Local Solvent and pH Effects [PDF]

, 2021
Rational design of molecular chelating agents requires a detailed understanding of physicochemical ligand-metal interactions in solvent phase. Computational quantum chemistry methods should be able to provide this, but computational reports have shown ...
William, Belfield, Tae Hoon, Choi, Brian, Gentry, John, Keith   +3 more
core   +1 more source

Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution

Indonesian Journal of Chemistry, 2021
The paper reports the study of the complex formation of cobalt (II) with diethylenetriaminepentaacetic acid (DTPA, H5L) based on spectrophotometric (SF) and potentiometric data (pH).
Ghusoon Faidhi Hameed, Fawzi Yahya Wadday, Nahla Shakir Salman   +2 more
doaj   +1 more source

Solution Equilibrium Studies of Anticancer Ruthenium(II)-η6-p-cymene Complexes of Pyridinecarboxylic Acids [PDF]

, 2014
Stoichiometry and stability of antitumor ruthenium(II)-η6-p-cymene complexes of picolinic acid and its 6-methyl and 6-carboxylic acid derivatives were determined by pH-potentiometry, 1H NMR spectroscopy and UV–Vis spectrophotometry in aqueous solution in
Sija, Éva, Enyedy Éva Anna, Kiss Tamás, Enyedy, Éva Anna, Hartinger Christian G., Sija Éva, Keppler, Bernhard K., Keppler Bernhard K., Hartinger, Christian G., Kiss, Tamás   +9 more
core   +1 more source

Investigation of metal–flavonoid chelates and the determination of flavonoids via metal–flavonoid complexing reactions [PDF]

Journal of the Serbian Chemical Society, 2007
Flavonoids constitute a large group of polyphenolic phytochemicals with antioxidant properties which are overwhelmingly exerted through direct free radical scavenging.
DUSAN MALESEV, VESNA KUNTIC
doaj   +3 more sources

Stability constants of iron(II) supported and lead(II) complexes

مجلة بغداد للعلوم, 2006
Overall enthalpy and entropy of complex formation were calculated from stability constant measurements at different tempreture also experimental ...
Baghdad Science Journal
doaj   +1 more source