%A"Rao, R R" %A"Vinchurkar, M" %A"Rao, B S.M. [University of Poona, Pune (India). Department of Chemistry]" %A"Mohan, H [Bhabha Atomic Research Centre, Bombay (India). Chemistry Division]" %D1994 %IBhabha Atomic Research Centre, Bombay (India); Department of Atomic Energy, Bombay (India). Board of Research in Nuclear Sciences %2 %J[] %K40 CHEMISTRY, HYPOXANTHINE, RADIOLYSIS, INOSINE, ABSORPTION SPECTRA, CHEMICAL REACTION KINETICS, ELECTRON BEAMS, PULSED IRRADIATION, SULFATES %PMedium: X; Size: pp. 10-12 %TReaction of SO{sub 4}{sup .-} with hypoxanthine and inosine studied by pulse radiolysis %XThe SO{sub 4}{sup .-} radical was found to react with hypoxanthine and inosine with diffusion controlled rates (k{sub Hyp} 6.6 x 10{sup 9} and k{sub InO} 6 x 10{sup 9} dm{sup 3} mol{sup -1} s{sup -1}). The absorption spectrum recorded in the reaction of SO{sub 4}{sup .-}with hypoxanthine is similar to that observed in {sup .}OH reaction unlike in the case of inosine. A reaction mechanism in the light of the observed results is proposed. (author). 3 refs., 1 fig. %0Conference %NCONF-9401116-;TRN: IN9501080062484 %1 %CIndia %Rhttps://doi.org/ TRN: IN9501080062484 INIS %GEnglish