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

Substance: nitrogen dioxide				Other Names: 

Formula: NO2						CAS-No.: 10102-44-0

Study: UV/Vis absorption cross sections

                
Authors: A. Amoruso, L. Crescentine, G. Fiocco, M. Volpe

Title: New Measurements of the NO2 Absorption Cross Section in the 440- to 460-nm Region and Estimates of the NO2-N2O4 Equilibrium Constant

Journal/Source: J. Geophys. Res., 98, 16857-16863, (1993); doi:10.1029/93JD01582 


Data: table, diagram

Energy/Wavelength range: 440 - 460 nm

Resolution: 0.5 nm

Temperature: 220 K; 298 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: gas

pH:


Comments: Absolute determinations of the NO2 absorption cross section in the 440- to 460-nm region at different 
temperatures are reported. The interpretation of the results is rendered complex by the coexistence of NO2 and its dimer. 
In the experiment both NO2 and N2O4 absorption features are observed.

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