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Radiation Chemistry of Aqueous Solutions of Dicyandiamide 2. D. Dragani6,* I. G. Dragani6, and K. Sehested Boris KidriE Institute of Nuclear Sciences, Beograd 1100 1, Yugoslavia (Received March 2, 1978)
Oxygen-free aqueous solutions of dicyandiamide, DCDA, were exposed to 6oCoy rays or a pulsed 10-MeVelectron beam. Fast kinetic spectrophotometry was used for the study of free-radical intermediates, and computer simulation of the reaction mechanism for evaluation of experimental data. The hydrated electron reacts by addition, k(e,,- + DCDA) = 1.1 X 1O'O M-ls- l; t he anion radical [NH,C(=NH)NHCN]- absorbs in the UV region with, , ,A
