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

Substance: hydroxyacetone				Other Names: acetol

Formula: C3H6O2; CH3C(O)CH2OH				CAS-No.: 116-09-6

Study: photolysis, UV absorption spectrum

                
Authors: J.J. Orlando, G.S. Tyndall, J.-M. Fracheboud, E.G. Estupiña, S. Haberkorn, A. Zimmer

Title: The rate and mechanism of the gas-phase oxidation of hydroxyacetone 

Journal/Source: Atmos. Env., 33, 1621-1629, (1999); doi:10.1016/S1352-2310(98)00386-0


Data: table, diagram

Energy/Wavelength range: 235 - 340 nm

Resolution: 

Temperature: 298 K

Temperature dependence: 

Pressure/Concentration: 

Phase: gas

pH:


Comments: The spectrum is blue-shifted by about 15 nm relative to that of acetone and peaks at 266 nm, with a 
maximum absorption cross section of (6.7±0.6) ×10-20 cm2 molecule-1.
The quantum yield for photolysis of hydroxyacetone in the region relevant to the troposphere (lambda>290 nm) was found 
to be significantly less than unity.

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