Trigger waves in iodate-driven oscillatory reaction systems

Rastogi, Raghunath P. ; Varma, Maheshwari K. ; Yadava, Ram D. ; Sadhna Singh, Km. (1985) Trigger waves in iodate-driven oscillatory reaction systems Journal of the Chemical Society, Faraday Transactions, 1 (3). p. 81. ISSN 0300-9599

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Official URL: http://pubs.rsc.org/en/content/articlelanding/1985...

Related URL: http://dx.doi.org/10.1039/F19858100751

Abstract

Both one-dimensional and two-dimensional trigger-wave propagation in the systems (A) IO3+ Ce4+/Mn2++ mandelic acid + acetone +H2SO4+ ferroin/starch, (B) IO3+ Ce4+/Mn2++ acetylacetone + H2SO4+ ferroin/starch and (C) IO3+ Ce4+/Mn2++ mandelic acid + arsenite + H2SO4+ ferroin/starch has been investigated. Single red bands (with ferroin) and blue bands (with starch) propagate with velocity v given by the relation v=A exp (-Ea/RT)[H+.]−10[IO3]1/20 where A and Ea are constants. A is different for each of the three systems but Ea has the same value, 12.2+0.2 cal mol−1, for both one-dimensional and two-dimensional waves.

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