The kinetics and mechanism of reduction of hexacyanoferrate (III) by biodegradable chondroitin-4-sulfate (CS)
in alkaline solutions at a constant ionic strength of 1.0 mol dm−3 have been investigated spectrophotometrically.
The kinetic results indicated that the reaction was first-order dependence in the oxidant and fractional-order kinetics
with respect to the [CS]. The influence of the base on the oxidation rates indicates that the reaction was
base-catalyzed. A kinetic evidence for formation of 1:1 intermediate complexeswas revealed. The kinetic parameters
have been evaluated and a tentative reaction mechanismconsistentwith the kinetic results obtained is suggested
and discussed.