science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softcon 2019 Substance: hydroxyl radical Other Names: Formula: OH CAS-No.: 3352-57-6 Study: absorption spectra Authors: G. Czapski, B.H.J. Bielski Title: Absorption spectra of the OH and O - radicals in aqueous solutions Journal/Source: Radiation Physics and Chemistry, 41 (3), 503-505, (1993); doi:10.1016/0969-806X(93)90012-J Data: Energy/Wavelength range: ~ 220 - 350 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: Phase. pH: Comments: The OH radical has an absorption maximum at 230 nm with epsilon = (665 ± 25) dm3 mol-1 cm-1 while the spectrum of the O radical shows a continuous increase in absorbance with decreasing wavelength between 350 and 220 nm; no maximum was observed in this range. Author to whom correspondence should be addressed: (e-mail address):