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Electrochemical kinetic study of the Fe3+Fe2+ system in oxalate medium

✍ Scribed by V. Lopez; M.J. Peña

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
451 KB
Volume
26
Category
Article
ISSN
0013-4686

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✦ Synopsis

The overall proasses were determined for the reduction of Fe?* to Fe", in an oxalate medium and at oxalate concentrations of less than 0.5M. The coordination numbers of the oxidized and reduced species were calculated, together with the number of intervening protons that depend on the oxalate concentration and the pH.

Inaddition, the species that reducesat the electrode is determined, together with the intensity equations for each process.

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✍ M. I. Karayannis; S. M. Tzouwara-Karayanni; S. R. Crouch 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB 👁 2 views

Ascorbic acid present in natural products is often analyzed by its reducing effect on 2,6-dichlorophenolindophenol (DCPI). In case of coexistence of Fe(II) in natural samples and if oxalic acid is used for their extraction and stabilization, a significant interference is observed. The reaction of Fe