Abstract
The effects of ceramics radiation on nitrosation of dimethylamine with nitrite in citrate buffer of pH 3.4 was studied using a ceramics plate and a ceramics heater. The rate constant of nitrosodimethylamine (NDMA) production under the irradiation conditions decreased by 81% from the non-irradiated reaction, and that of nitrite degradation increased 1.5-fold. The activation energy for NDMA production and nitrite degradation after 4 h of irradiation decreased by 53 and 73% of the non-irradiated reactions, respectively. It was estimated that the hydration effects of the ceramics radiation were concerned in the repression of NDMA production and the acceleration of nitrite degradation.
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