Ionising radiations, employed in a broad range of dose-rate, together with a complex non-linear computation of reaction mechanisms, allow the determination of boundary values of rate constants concerning sorbitylfurfural (SF) reactivity towards a wide series of oxidant and/or virtually harmful radicals. SF reacts with some radicals (H, SO4 -˙, CO3 -˙, Br2 -˙, CH3˙), produced with both pulse and stationary radiolysis in neutral aqueous solution, having electrophilic and/or oxidative behaviour. The rate constants range from diffusional (k = (7-9) × 109 M-1 s-1) to relatively low values (k = 2 × 105 M-1 s-1). The possibility to observe these reactions, by means of radiolytical techniques, is heavily influenced by dose-rate. A relation between the radical E0 NHE and their reactivity with SF is hinted.
Research on Chemical Intermediates – Springer Journals
Published: Apr 1, 2004
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