science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2010 Substance: nitric acid Other Names: Formula: HNO3 CAS-No.: Study: uv absorption cross sections Authors: H. Johnston, R. Graham Title: Gas-phase ultraviolet absorption spectrum of nitric acid vapor Journal/Source: J. Phys. Chem., 77, 62-63, (1973); DOI: 10.1021/j100620a013 Data: (diagram, table, disk): diagram, table Energy/Wavelength range: 190 - 325 nm Resolution: 0.7 nm Temperature: 298 K Temperature dependence: Pressure/Concentration: cell concentrations between 8 x 10^13 and 6 x 10^16 molecules per cm3 Phase (gas, liquid, solid): vapor pH: Comments: The absorption cross section is above 10-17 cm2 at 190 nm, about 10-20 cm2 between 240 and 290 nm, and less than 10-22 cm2 from 322 to 370 nm. Author to whom correspondence should be addressed: (e-mail address):