A pulse radiolysis study of I and (SCN) in aqueous solutions over the temperature range 15–90°C

The extinction coefficients and the decay kinetics of I and (SCN) have been characterized over the 15–90°C‐temperature range. The extinction coefficients of I at 385 and 725 nm were determined to be 10,000 and 2560M−1 cm−1, respectively, based on the extinction coefficient of (SCN) at 475 nm being equal to 7600M−1 cm−1. At these three wavelengths, all extinction coefficients were constant over the temperature range studied. The rate of decay of both I and (SCN) was found to be a function of I− and SCN− concentration, respectively, as well as temperature.