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

Substance: sulfur dioxide				Other Names: 

Formula: SO2						CAS-No.: 7446-09-5

Study: uv absorption spectrum


Authors: T.J. McGee, J. Burris Jr.

Title: SO2 Absorption Cross Sections in the Near U.V.

Journal/Source: J. Quant. Spectr. Rad. Transfer, 37, 165-182, (1987); http://dx.doi.org/10.1016/0022-4073(87)90020-3


Data: diagram, table

Energy/Wavelength range: 300 - 320 nm

Resolution: 0.03 nm

Temperature: 210 K; 295 K

Temperature dependence: yes

Pressure/Concentration:  

Phase: gas

pH:


Comments: The authors have measured absorption cross sections in SO2, between 3000 and 3240 Å at 295 and 210 K.
Measurements in the 3175 ± 5 Å spectral region indicate that there is a 9% reduction in the average cross section at 210 K 
compared to room temperature data. Peak cross sections measured at low temperature show increases up to 20% over 
room temperature data, while cross-section decreases are measured at low temperatures in the areas between the strong features.

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