science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: nitrogen trioxide				Other Names: 

Formula: NO3						CAS-No.: 12033-49-7

Study: Vis absorption cross sections

                
Authors: A.R. Ravishankara, R.L. Mauldin III

Title: Temperature Dependence of the NO3 Cross Section in the 662 nm Region

Journal/Source: J. Geophys. Res., 91, 8709-8712, (1986); doi:10.1029/JD091iD08p08709


Data: table, diagram

Energy/Wavelength range: 652.5 - 672.5 nm

Resolution: 

Temperature: 220 K; 240 K; 298 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: gas

pH:


Comments: The absorption cross section of NO3 free radical has been measured in the wavelength region of 652.5-672.5 nm 
at three temperatures (220, 240, and 298 K). It was found that the absorption cross section at 662 nm (the peak of the band) 
increased with decrease in temperature, while the shape of the band itself did not change.
sigma(662 nm/220 K) = 2.71e-17 cm2/molecule
sigma(662 nm/240 K) = 2.31e-17 cm2/molecule

Author to whom correspondence should be addressed: (e-mail address):