BISTABILITY IN AN UNCATALYZED BROMATE OSCILLATOR IN A CONTINUOUSLY FED STIRRED-TANK REACTOR

Uncatalyzed gallic acid oscillating system has been investigated in a continuously fed stirred tank reactor (CSTR). In the [Bromate](0)-[Bro mide](0) concentration space, a region has been located where a bistab ility is observed between an oscillatory branch and a flow branch. To our knowledge this is the first evidence of bistability in an uncataly zed bromate oscillator. Some observations have been explained in terms of the skeleton mechanism proposed in the past. (C) 1996 American Ins titute of Physics.