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

Substance: benzaldehyde					Other Names: phenylmethanal; benzoic aldehyde

Formula: C6H5CHO					CAS-No.: 100-52-7

Study: uv absorption cross sections

                
Authors: G. Thiault, A. Mellouki, G. Le Bras, A. Chakir, N. Sokolowski-Gomez, D. Daumont

Title: UV-absorption cross sections of benzaldehyde, ortho-, meta-, and para-tolualdehyde

Journal/Source: J. Photochem. Photobiol. A: Chem., 162, 273-281, (2004); http://dx.doi.org/10.1016/j.nainr.2003.08.012


Data: table, diagram

Energy/Wavelength range: 252 - 368 nm

Resolution: 0.2 nm

Temperature: 303 - 363 K

Temperature dependence: 

Pressure/Concentration: 

Phase:

pH:


Comments: Absorptioncross-sections for benzaldehyde, o-tolualdehyde, m-tolualdehyde and p-tolualdehyde have been measured in 
the wavelength region 252–368 nm using two different systems (D2 lamp-diode array and D2 lamp-monochromator). In addition, cross-
sections at 253.7, 312.2 and 365 nm have been measured using a Hg pen ray lamp and were found in good agreement with those 
obtained using the D2 lamp-diode array system. The absorption spectra of the four aromatic aldehydes have been found to exhibit fine 
structures similarly to aromatic hydrocarbons.

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