science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: hypochlorous acid Other Names: Formula: HOCl CAS-No.: 7790-92-3 Study: uv absorption spectrum Authors: R.J. Barnes, A. Sinha, H.A. Michelsen Title: Assessing the Contribution of the Lowest Triplet State to the Near-UV Absorption Spectrum of HOCl Journal/Source: J. Phys. Chem. A, 102 (45), 8855 -8859, (1998); 10.1021/jp9835869 S1089-5639(98)03586-5 Data: table, diagram Energy/Wavelength range: 200 - 450 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: Phase: pH: Comments: The near-UV absorption spectrum of HOCl is examined using laser induced fluorescence to monitor OH fragments resulting from photodissociation. Although the peak absorption cross section for the band is modest, sigma(380 nm) = 4 × 10-21 cm2, its long-wavelength tail extends down to 480 nm. Author to whom correspondence should be addressed: (e-mail address):