science-softCon uv/vis+ spectra data base www.uv-spectra.de; (C) science-softCon 2017 Substance: methyl radical Other Names: Formula: CH3 CAS-No.: 2229-07-4 Study: UV absorption spectrum, kinetics Authors: B. Hickel Title: Absorption spectra and kinetics of methyl and ethyl radicals in water Journal/Source: J. Phys. Chem., 79 (11), 1054-1059, (1975); DOI: 10.1021/j100578a003 Data: table, diagram Energy/Wavelength range: 200 - 240 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: CH4 pressure (30 atm) Phase: gas; solution (water + N2O; water + CH3Cl; water + HClO4) pH: Comments: To increase the concentration of CH4 and C2H6 in solution, the authors used a pressure cell with a pressure of gas above the solution of 30 atm. This gaves concentrations of 4 x 10^-2 and 5 x 10^-2 M for methane and ethane in the solution. N2O, CH3Cl and H3O+ were used to scavenge electrons. Author to whom correspondence should be addressed: (e-mail address):