Abstract
Using IR spectrophotometry, potentiometry, and quantitative analysis, it was ascertained that the process of complexing Ag(I) ions with picolinic acid (Hpic) results in the formation of complexes such as AgH(pic)2 (pH<4) and Ag(pic)2− (pH≌7). Complex Ag(II) occurs in the form Ag(pic)2o independently of the medium. The values of conditional complex stability constants (μ=0.1) for Ag(pic)o and Ag(pic)2− found by potentiometry are as follows: β01=3.4×103 and β02=1.2×106. Redox systems formed in solutions were described and their formal potentials were determined by chronovoltamperometry: $$\begin{gathered} Ag(pic)_{2 }^o + e \rightleftarrows Ag (pic)_2^ - {\rm E}_f^o = 1.388 V vs. NHE \hfill \\ Ag(pic)_{2 }^o + e \rightleftarrows Ag (pic)^o + pic^ - {\rm E}_f^o = 1.240 V vs. NHE. \hfill \\ \end{gathered} $$
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
