Complex formation between Cd(II) and 2-mercaptopropionic acid in 3.0 M NaClOat 25°C

Manuel Aguilar, Salvador Alegret, Enric Casassas

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Abstract

The equilibrium reactions between Cd(II) and 2-mercaptopropionic acid (H2A) have been studied in 3.0 M NaClO4 at 25°C, by measuring the e.m.f. of the glass and Cd(Hg) electrodes as a function of the pH of the solution. In the range of 2.5 < -log [H+] < 4.5 the formation of a precipitate is observed. At -log [H+] > 4.5 the precipitate disappears. The e.m.f. data obtained in the range 4.5 < -log [H+] < 9.3, treated by the general minimizing program LETAGROP, can be explained by assuming the formation of the species CdA2, Cd2A3 and Cd3A4. A reaction equation is proposed and the formation constants for these species are given. © 1977.
Original languageEnglish
Pages (from-to)733-737
JournalJournal of Inorganic and Nuclear Chemistry
Volume39
Issue number4
DOIs
Publication statusPublished - 1 Jan 1977

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    Aguilar, M., Alegret, S., & Casassas, E. (1977). Complex formation between Cd(II) and 2-mercaptopropionic acid in 3.0 M NaClOat 25°C. Journal of Inorganic and Nuclear Chemistry, 39(4), 733-737. https://doi.org/10.1016/0022-1902(77)80604-0