REACTION OF NITROUS ACID WITH U(IV) AND NITRIC ACID IN 30% TBPKEROSENE SOLUTION

Reaction of nitrous acid with U(IV) and nitric acid in 30% TBP-kerosene solution is investigated, the rate equations of oxidation of U(IV) bynitrous acid and that of nitrous acid reacting with nitric acid can be expressed as:-d[U(IV)]/dt=0.14[U(IV)][HNO_2]~(0.55)/[HNO_3]~(0.43)and-d[HNO_2]/dt=0.16[HNO_2][HNO_3]respectively, and the overall reaction rate equation for nitrous acid is:d[HNO_2]/dt=0.14 [U(IV)][HNO_2]~(0.55)/LHNO_3]~(0.43)-0.16[HNO_2][HNO_3]