science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2010 Substance: nitric acid Other Names: Formula: HNO3 CAS-No.: 7697-37-2 Study: uv absorption cross sections Authors: S. C. Schmidt, A. Goldman, F. S. Bonomo, D. G. Murcray, R. C. Amme Title: Quantitative Studies of HNO3 Vapor Absorption in the 1700–2636-Å Wavelength Region Journal/Source: Applied Optics, 13 (5), 1202-1208, (1974); doi:10.1364/AO.13.001202 Data: (diagram, table, disk): Energy/Wavelength range: 170.0 - 263.6 nm Resolution: Temperature: 295 K Temperature dependence: Pressure/Concentration: 0.0004 - 0.066 atm Phase (gas, liquid, solid): vapor pH: Comments: Quantitative measurements were made in the 1700-2636 Å wavelength interval at 22°C of the pure HNO3 vapor absorption spectrum. Absorption coefficients, which were found to be both pressure and length dependent, were determined using six absorption cell lengths between 0.1 cm and 10.0 cm, and numerous gas pressures in the 0.0004-0.066-atm range. Author to whom correspondence should be addressed: (e-mail address):