science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2011 Substance: nitric acid Other Names: Formula: HNO3 CAS-No.: 7697-37-2 Study: photolysis, quantum yields Authors: T. Bérces, S. Förgeteg Title: Kinetics of photolysis of nitric acid vapour. Part 1.-Direct photolysis at low conversion Journal/Source: Trans. Faraday Soc., 66, 633-639, (1970); DOI: 10.1039/TF9706600633 Data: (diagram, table, disk): Energy/Wavelength range: 253.7 nm; 265.0 nm Resolution: Temperature: 298 K Temperature dependence: Pressure/Concentration: Phase (gas, liquid, solid): pH: Comments: The direct photolysis of nitric acid has been studied at 2650 and 2537 Ĺ at small conversions. According to the experimental results, a hydroxyl radical and a NO2 molecule are formed in the primary process. The primary quantum yields are 0.1 and 0.3 at wavelengths 2650 and 2537 Ĺ, respectively. Author to whom correspondence should be addressed: (e-mail address):