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

Substance: o-phthalaldehyde				Other Names: phthaldialdehyde

Formula: C8H6O2						CAS-No.: 643-79-8

Study: uv absorption coefficients


Authors: L. Wang, J. Arey, R. Atkinson

Title: Kinetics and Products of Photolysis and Reaction with OH Radicals of a Series of Aromatic Carbonyl Compounds

Journal/Source: Environ. Sci. Technol., 40 (17), 5465-5471, (2006); DOI: 10.1021/es061022+


Data: table, diagram

Energy/Wavelength range: 205 - 400 nm

Resolution: 

Temperature: 298 K

Temperature dependence: 

Pressure/Concentration: 735 Torr total pressure of purified air at ~ 5% relative humidity

Phase: gas

pH:


Comments: The absorption coefficients for phthaldialdehyde, 2- acetylbenzaldehyde, 1,2-diacetylbenzene and phthalide 
are measured in n-hexane solution.
Average photolysis quantum yields of 0.19 and 0.21, for phthaldialdehyde and 2-acetylbenzaldehyde in n-hexane
solution were derived for the 290-400 nm wavelength region.

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