Abstract
The kinetics of the reaction PH + OH" wt P~ + H20 (1), where PH and P" represent purine and purinate ion, respectively, have been determined by an ultrasonic attenuation technique. The effect of a dimerization process (formation of (PH)2) on the equilibrium purine concentration has been included in the kinetic analysis. Meas- urements were performed at 25°, pH 9.88, and in an ionic strength range 0.6-1.0 if. The measured rate con- stants areh = (1.13 ± 0,05) X 1010if'"1sec~1andfer = (4.0 ± 2.0) X 10s sec"1.