science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: nitrous acid Other Names: Formula: HONO CAS-No.: 7782-77-6 Study: photochemistry, UV absorption spectrum Authors: T. Arakaki, T. Miyake, T. Hirakawa, H. Sakugawa Title: pH Dependent Photoformation of Hydroxyl Radical and Absorbance of Aqueous-Phase N(III) (HNO2 and NO2-) Journal/Source: Environ. Sci. Technol., 33 (15), 2561–2565, (1999); DOI: 10.1021/es980762i Data: table, diagram Energy/Wavelength range: 280 - 410 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: 0.00125 - 0.01 M Phase: aqueous solution pH: 1.1 Comments: The molar absorptivity of aqueous HNO2 was determined at pH = 1.1 (H2SO4) and concentration of HNO2 ranged from 0.00125 - 0.01 M. Author to whom correspondence should be addressed: (e-mail address):