Bromide-catalysed Oxidation of Arsenic(III) by Manganese(lll) in Acid Medium

Department of Chemistry, Kamatak University, Dharwad-580 003 Manuscript received 14 January 1994, accepted 17 February 1994 Halide-catalysed MnIII oxidation of AsIII goes through complex such as AsBr2+ and through As4+. No acid or product effect is found. A mechanism is proposed and derived rate law is verified. Some constants Involved in the mechanism are derived. Rates calculated using the derived constants are in reasonable agreement with the experimental rates