Bromate-driven oscillators

D) Iodine-free chlorite oscillators. In view of our almost total ignorance of how the chlorite-thiosulfate system functions, we place it for the moment in a class of its own, though further study may ultimately situate it in an expanded category A. The recently discovered chlorite-bromide-bromate oscillator may be analogous to the chlorite-iodide-iodate system of class A ) above, though one may view it alternatively as a bromate driven oscillator in which CIOJ plays the role of the metal catalyst. 

Bromate-Driven Oscillators in the Presence of Excess Silver Ion. J. Phys. Chem. 86,... 

IIIK, C) Gupta, V. K., Srinivasulu, K. Uncatalyzed and Catalytic Bromate Driven Oscillations... 

IIIC) Noyes, R. M. A Mechanism for Bromate Driven Oscillator. J. Am. Chem. Soc. 102,... 

Number of oscillators have been discovered which belong to different types such as (i) Bromate-driven oscillators (ii) lodate-driven oscillators (iii) chlorate-driven oscillators (iv) p-H driven oscillators and (v) Miscellaneous oscillators. Some of these are depicted [1] in Figs. 9.1-9.4. 

R. J. Field, Experimental and mechanistic characterization of bromate-ion-driven chemical oscillations and traveling waves in closed systems, in Field and Burger (ref. Gl), Chapter 2. 

Boissonade etal. consider the chemoelastodynamics of responsive gels in Chapter 9. This chapter is devoted to the spontaneous generation of mechanical oscillations by a responsive gel immersed in a reactive medium away from equilibrium. Two important cases are considered. In the first case, the chemomechanical instability is mainly driven by a kinetic instabiUty leading to an oscillatory reaction. The approach is applied to the BZ reaction. The second case is a mechanical oscillatory instability that emerges from the cross-coupUng of a reaction-diffusion process and the volume or size responsiveness of the supporting material. In this case, there is no need for an oscillatory reaction. Bistable reactions, namely, the chlorite-tetrathionate (CT) and the bromate-sulfite (BS) reactions, were chosen... 

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