Radiation chemistry of aqueous iodine at low concentrations

摘要: Abstract Measurements of the volatility iodine from irradiated iodide (I−) solutions at concentrations down to 10−9 M are reported and compared with earlier data higher I− (10−5 – 10−4 M). There is a significant pH effect on volatility, as observed in other studies; effects concentration temperature less important. The measured volatilities cannot be wholly accounted for by I2, because its extensive hydrolysis low [I−] would imply unrealistically high HOI concentrations. partition coefficient hypoiodous acid (HOI) uncertain, but values suggest it too give volatilities. It therefore concluded that atomic (I•) an important contributor under these low-concentration conditions.