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

Substance: acetone					Other Names: dimethyl ketone

Formula: C3H6O; CH3COCH3				CAS-No.: 67-64-1

Study: near uv molar absorptivities

                
Authors: V. Feigenbrugel, C. Loew, S. Le Calve, P. Mirabel

Title: Near-UV molar absorptivities of acetone, alachlor, metolachlor, diazinon and dichlorvos in aqueous solution

Journal/Source: J. Photochem. Photobiol. A: Chem., 174, 76-81, (2005); http://dx.doi.org/10.1016/j.jphotochem.2005.03.014


Data: diagram, table

Energy/Wavelength range: 240 - 320 nm

Resolution: 2-5 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration:

Phase: in aqueous solution

pH:


Comments: Molar absorptivities epsilon of acetone, alachlor, metolachlor, diazinon and dichlorvos measured between 240-320 nm 
using a deuterium lamp and normalized with the value determined at 253.7 nm with a Hg lamp. The absolute values of molar 
absorptivity coefficients at this wavelength were determined according to the Beer-Lambert law: epsilon = 13.9 ± 1.0 for acetone, 
epsilon = 466 ± 41 for alachlor, epsilon = 615 ± 63 for metolachlor, epsilon = 3558 ± 323 for diazinon, epsilon = 5.5 ± 0.5 for 
dichlorvos (in units of M-1 cm-1). The reported values are averaged over 2 nm intervals in the range 240-290 nm and over 5 nm 
intervals in the range 290-320 nm.

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