Reaction Rate Coefficient of OH Radicals with -Butanol as a Function of Temperature.

-Butanol or 1-butan- -ol (D9B) is often used as an OH radical tracer in atmospheric chemistry studies to determine OH exposure, a useful universal metric that describes the extent of OH radical oxidation chemistry. Despite its frequent application, there is only one study that reports the rate coefficient of D9B with OH radicals, (295 K), which limits its usefulness as an OH tracer for studying processes at temperatures lower or higher than room temperature. In this study, two complementary experimental techniques were used to measure the rate coefficient of D9B with OH radicals, (), at temperatures between 240 and 750 K and at pressures within 2-760 Torr.