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Substance: nitric acid				Other Names:

Formula: HNO3					CAS-No.: 7697-37-2

Study: photolysis, quantum yields, uv absorption cross sections


Authors: Chengzhu Zhu, Bin Xiang, Liang T. Chu, Lei Zhu

Title: 308 nm Photolysis of Nitric Acid in the Gas Phase, on Aluminum Surfaces, and on Ice Films

Journal/Source: J. Phys. Chem. A, 114 (7), 2561-2568, (2010); DOI: 10.1021/jp909867a


Data: (diagram, table, disk): table, diagram

Energy/Wavelength range: 308 nm

Resolution: 

Temperature: 253 K; 295 K

Temperature dependence: 

Pressure/Concentration:

Phase: gas; adsorbed on aluminium surfaces and on ice films

pH:


Comments: The authors have studied the photolysis of nitric acid (HNO3) in the gas phase at 253 and 295 K, on aluminum 
surfaces at 253 and 295 K, and on ice films at 253 K, by using 308 nm excimer laser photolysis.
The NO2* quantum yields from the HNO3 photolysis on aluminum surfaces are 0.80 ± 0.15 at 295 K and 0.92 ± 0.26 at 253 K.
Absorption cross sections of HNO3 on Al surface at 308 nm are (4.19 ± 0.17) × 10-18 and (4.23 ± 0.45) × 10-18 cm2/molecule 
at 253 and at 295 K, whereas the corresponding absorption cross section of HNO3 on ice films is (1.21 ± 0.31) × 10-18 cm2/molecule 
at 253 K.
PLEASE NOTE: The data were corrected (see http://pubs.acs.org/doi/abs/10.1021/jp307455q). The 308 nm adsorbed HNO3
absorption cross sections are revised to (3.96 ± 0.45) x 10-18 cm2/molecule (295 K, Al), (3.92 ± 0.44) x 10-18 cm2/molecule
(253 K, Al), and (9.41 ± 2.25) x 10-19 cm2/molecule (253 K, ice film).

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