N,N-Diethyl-hydroxylamine (DEHA) is a novel salt-free reductant used in the reprocessing of spent fuel, this paper reports on c-rays damage of 0.1-0.5 mol L -1 DEHA irradiated 5-25 kGy and its radiolytic products. DEHA is relative stable against radiation, its radiolysis rate increases with the dose, but decreases with increasing initial DEHA concentration. The main radiolytic products are hydrogen, ethene, methane, acetaldehyde and ammonium ion, their quantities increase with initial DEHA concentration. Hydrogen and liquid radiolytic products quantities increase with the dose, the dependence of hydrocarbon quantity on dose relates to original DEHA concentration and dose.
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