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

Substance: sulfur trioxide				Other Names: sulfuric anhydride

Formula: SO3						CAS-No.: 7446-11-9

Study: uv absorption cross sections


Authors: T. Fukuchi, H. Ninomiya

Title: SO3 Concentration Measurement Using Ultraviolet Absorption Spectroscopy and Thermal Conversion

Journal/Source: Transactions of the Institute of Electrical Engineers of Japan. A; 126 (10), 977-982, (2006) 


Data: table, diagram

Energy/Wavelength range: 190 - 320 nm

Resolution: 

Temperature: 

Temperature dependence: 

Pressure/Concentration:

Phase: gas

pH:


Comments: Ultraviolet absorption spectroscopy was used to measure the absorption cross section of SO3. The measured cross 
section had a peak value of about 9 x 10-19 cm2 near wavelength 200 nm.

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