science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: ethylperoxy radical Other Names: ethyldioxy Formula: C2H5O2 CAS-No.: 3170-61-4 Study: uv absorpttion spectra, kinetics Authors: O.J. Nielsen, M.S. Johnson, T.J. Wallington, L.K. Christensen, J. Platz Title: UV absorption spectra of HO2, CH3O2, C2H5O2, and CH3C(O)CH2O2 radicals and mechanism of the reactions of F and Cl atoms with CH3C(O)CH3 Journal/Source: Int. J. Chem. Kinetics, 34, 283-291, (2002); DOI: 10.1002/kin.10037 Data: table, diagram Energy/Wavelength range: 215 - 340 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: gas pH: Comments: Pulse radiolysis techniques were used to measure the gas phase UV absorption spectra of the title peroxy radicals over the range 215-340 nm. By scaling to sigma(CH3O2)240 nm = (4.24 ± 0.27) × 10-18 the cross section is determined to sigma(C2H5O2)240 nm = 4.71 ± 0.45 Author to whom correspondence should be addressed: (e-mail address):