Effects of solute concentration and pH on radical and molecular yields in X-irradiated aqueous solution

Abstract

Effects of solute concentration and pH on the yields of products from X-irradiated aqueous solutions containing i-PrOH+N₂O, Fe(CN)^4–₆+Fe(CN)^3–₆+N₂O or NO^–₂+N₂O have been measured. Radical yields increase with increase of solute concentration and at pH>11. These results are interpreted in terms of conversion of H to e^–_aq at high pH and reaction of a species other than e^–_aq possibly an excited water molecule, with N₂O.