Newly designed permanganate-reductant chemical oscillators

Christopher J. Doona, Kenneth Kustin, M. Orbán, Irving R. Eptein

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The subfamily of manganese oscillating chemical reactions containing permanganate as oxidant, plus a reductant, and phosphate to stabilize intermediate Mn oxidation has expanded in two ways. The "minimal" manganese osillator, MnO4- + Mn2+ + H2PO4-, and several of its osillatory derivatives give oscillation when either arsenate or vanadate replaces phosphate. Oscillatory behavior in a flow reactor has also been found for seven new reductants: arsenite, thtocyanate, thiourea, ascorbic acid, hydroxylamine, dithionite, and nitrite. A two-component permanganate oscillator is constructed using arsenite as the reductant, in which the stabilizing arsenate is generated as a reaction product. Our results yield insight into the roles of the reductant and the stabilizer in promoting oscillation.

Original languageEnglish
Pages (from-to)7484-7489
Number of pages6
JournalJournal of the American Chemical Society
Volume113
Issue number20
Publication statusPublished - 1991

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Reducing Agents
Manganese
Phosphates
Thioureas
Ascorbic acid
Reaction products
Oxidants
Chemical reactions
Dithionite
Derivatives
Oxidation
Thiourea
Hydroxylamine
Vanadates
Nitrites
Ascorbic Acid
permanganic acid
arsenic acid
arsenite

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Doona, C. J., Kustin, K., Orbán, M., & Eptein, I. R. (1991). Newly designed permanganate-reductant chemical oscillators. Journal of the American Chemical Society, 113(20), 7484-7489.

Newly designed permanganate-reductant chemical oscillators. / Doona, Christopher J.; Kustin, Kenneth; Orbán, M.; Eptein, Irving R.

In: Journal of the American Chemical Society, Vol. 113, No. 20, 1991, p. 7484-7489.

Research output: Contribution to journalArticle

Doona, CJ, Kustin, K, Orbán, M & Eptein, IR 1991, 'Newly designed permanganate-reductant chemical oscillators', Journal of the American Chemical Society, vol. 113, no. 20, pp. 7484-7489.
Doona, Christopher J. ; Kustin, Kenneth ; Orbán, M. ; Eptein, Irving R. / Newly designed permanganate-reductant chemical oscillators. In: Journal of the American Chemical Society. 1991 ; Vol. 113, No. 20. pp. 7484-7489.
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