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Substance: acetone				Other Names: dimethyl ketone; propanone

Formula: 	CH3C(O)CH3				CAS-No.: 67-64-1

Study: photodissociation quantum yields

                
Authors: V. G. Khamaganov, R. Karunanandan, A. Horowitz, T. J. Dillon, J. N. Crowley

Title: Photolysis of CH3C(O)CH3 at 248 and 266 nm: pressure and temperature dependent overall quantum yields

Journal/Source: Phys. Chem. Chem. Phys., 11, 6173 - 6181, (2009); DOI: 10.1039/b904130c


Data: (diagram, table, disk): 

Energy/Wavelength range: 248 nm; 266 nm

Resolution: 

Temperature: 224, 234, 298 K

Temperature dependence: 

Pressure/Concentration: 60 - 760 Torr (N2)


Comments: The overall quantum yield of photolysis of acetone (CH3C(O)CH3) at 248 and 266 nm was measured.
At 248 nm, experiments were carried out at pressures between 60 and 760 Torr of N2 and at three temperatures: 224, 
234 and 298 K. At this wavelength, the overall quantum yield was 0.98 ± 0.10 and, within experimental uncertainty, 
was independent of pressure and temperature in the ranges covered. At 266 nm, experiments were restricted to 298 K, 
where the quantum yield was also close to unity, but with a weak dependence on bath gas pressure.

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