Measurement of 4-(2-thiazole azo) rososinol acidy constants by means of ultraviolet spectroscopy and chemometrics in water-acetonitrile and water-dioxane binary mixtures [PDF]
شیمی کاربردی روزIn this paper, by combining ultraviolet spectroscopy and Chemometrics method, the acid dissociation constant of 4- (2-thiazole azo) rososinol was measured. The absorption spectra of the 4- (2-thiazole azo) rososinol solution have a large spectral overlap,
Mansoor Namazian +2 more
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Solvent, substituents and pH effects towards the spectral shifts of some highly colored indicators [PDF]
Journal of the Serbian Chemical Society, 2017 The solvatochromic responses of six indicators namely Sudan orange, Alizarin yellow R, Aurin tricarboxylic acid, Alizarin yellow GG, Titan yellow and Eriochrome black-T, dissolved in seven solvents of different polarities, have been measured at room ...
Masoud Mamdouh S. +2 more
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Electrochemistry, 2021 A voltammetric method has been developed for the determination of the acid dissociation constant (pKa) of (RfSO2)2CHR (Rf = perfluoroalkyl), which is a strongly acidic molecule that serves as an acid catalyst.
Akira KOTANI +3 more
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Spectrophotometric determination of dissociation constant
, 2022 Vrijednost konstante disocijacije kiseline nam govori o stupnju disocijacije kiseline, odnosno o odnosu ravnotežnih koncentracija disociranog i nedisociranog oblika molekule.
Orešković, Patrik
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Synthesis and Determination of Acid Dissociation Constants of Bis-Acyl Thiourea Derivatives
Journal of the Turkish Chemical Society, Section A: Chemistry, 2023 N,N'-((dodecane-1,12-diylbis(azanediyl))bis(carbonothioyl))bis(4-nitrobenzamide) 5 and N,N'-((dodecane-1,12-diylbis(azanediyl))bis(carbonothioyl))bis(3-nitrobenzamide) 6 as bis acyl thiourea derivatives were synthesized and their molecular structures ...
Çağla EFEOĞLU +3 more
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Direct Potentiometric Determination of Fluoride Species by Using Ion-Selective Fluoride Electrode
International Journal of Electrochemical Science, 2012 A novel approach and method for potentiometric determination of acid dissociation constant (Ka) of hydrofluoric acid are described. Proposed method is based on using commercial fluoride ISE (FISE) as very inexpensive, simple and reasonably fast method ...
Ante Prkić +3 more
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Accuracy Assessment for Equilibrium Dissociation Constant Using a Single Binding Isotherm [PDF]
, 2023 The equilibrium dissociation constant (Kd) characterizes stability of non-covalent molecular complexes. Determining Kd for highly stable complexes may be extremely inaccurate if the ratio between the concentration of the limiting component (L0) and the a
Sergey, Krylov +3 more
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The solvent deuterium isotope effect on the dissociation constant of iodic acid
CHIMIA, 1973 The solubilities of hydrated and deuterated copper(II) iodate in HClO4–H2O and DClO4–D2O solutions respectively, were measured at 1, 15, 25 and 35°C, the perchloric acid concentrations ranging from 0 to 1.0 m.
H. Gamsjäger, F. Gerber, O. Antonsen
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Journal of the Turkish Chemical Society, Section A: Chemistry, 2017 Novel 5,5-diphenylpyrrolidineN-aroylthioureas, containing 4-methylbenzoyl, 2-chlorobenzoyl,2,4-dichlorobenzoyl, and2-naphthoyl, were synthesized and their structural analysis was performed using 1H nuclear magnetic resonance (NMR), 13C NMR, Fourier ...
Yahya Nural
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The missing hydrogen ion, part-1: Historical precedents vs. fundamental concepts
Sports Medicine and Health Science, 2023 The purpose of this review and commentary was to provide an historical and evidence-based account of organic acids and the biochemical and organic chemistry evidence for why cells do not produce metabolites that are acids.
Robert Robergs +3 more
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