Ishii, Hajime published the artcileEquilibria and kinetics of the extraction of nickel with 2-pyridinecarbaldehyde 2-(5-substituted)pyridylhydrazones, Formula: C11H10N4, the publication is Analytical Sciences (1988), 4(1), 73-6, database is CAplus.
The equilibrium and kinetics of the extraction of Ni with benzene solutions of 2-pyridinecarbaldehyde 2-(5-substituted)pyridylhydrazones were studied at 25 ± 0.1° and an ionic strength of 0.2. The extracted species was found too be NiL2 for each hydrazone, where L denotes the undissociable part of the hydrazone. Partition constants of the hydrazones and extraction constants of their Ni complexes between an aqueous and a benzene phase were determined The rate of extraction was best described by a two-term expression, both terms being 1st order in Ni ion and HL concentrations The first term has zero dependence on H+ concentration, whereas the 2nd is inversely first order with respect to H+ concentration These results support the hypothesis that the rate-determining steps involve 2 concurrent reactions of Ni with neutral and anionic forms of the hydrazones. Kinetic data and activation parameters for the first reaction were determined, but those for the second one involving the anion could not be obtained.
Analytical Sciences published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Formula: C11H10N4.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem