RADIOLYSIS OF TETRAZOLIUM SALTS IN POLYVINYL-ALCOHOL

The radiation chemical yields of formazans were measured in binary sys tems containing polyvinyl alcohol and tetrazolium salts as additives; it was established that they are more than half of the yields of radic als in pure polyvinyl alcohol. The ESR spectra of the indicated system s were measured at various temperatures, and the relative changes in t he radical concentrations were determined. It was suggested that the i ncrease in the concentration of single radicals at T > 400 K is due to the participation of radical pairs in the reaction.