science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softcon 2019 Substance: nitrate anion Other Names: nitrate Formula: NO3- CAS-No.: 14797-55-8 Study: uv absorption spectrum Authors: J.S. Gaffney, N.A. Marley, M.M. Cunningham Title: Measurement of the absorption constants for nitrate in water between 270 and 335 nm Journal/Source: Environ. Sci. Technol., 26 (1), 207-209, (1992); DOI: 10.1021/es00025a027 Data: table, diagram Energy/Wavelength range: 270 - 335 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: reagent grade sodium nitrate solutions, 0.053, 0.079, 0.106, 0.135, and 0.159 M. Phase: aqueous solution pH: Comments: Molar absorption coefficient epsilon(305nm) = 6.93 M-1 cm-1 Author to whom correspondence should be addressed: (e-mail address):