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: photolysis, quantum yield


Authors: M. Fischer, P. Warneck

Title: Photodecomposition of Nitrite and Undissociated Nitrous Acid in Aqueous Solution 

Journal: J. Phys. Chem., 100 (48), 18749 -18756, (1996); jp961692+ S0022-3654(96)01692-9


Data:

Energy/Wavelength range: 280 - 390 nm

Resolution: 

Temperature: 

Temperature dependence: 

Pressure/Concentration:

Phase: aqueous solution

pH: 2


Comments: The quantum yields of phenol and nitrate, produced by photodecomposition in aqueous solutions of NO2- and HNO2 
in the presence of benzene as scavenger for OH radicals, have been determined as a function of wavelength between 280 and 390 nm.
The OH quantum yield PHI(OH) for the photolysis of HNO2 at pH 2 was essentially constant over the entire 
wavelength range with PHI = 0.35 ± 0.02 (2sigma). 

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