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Substance: trichloroacetaldehyd				Other Names: chloral

Formula: C2HCl3O					CAS-No.: 75-87-6

Study: photolysis, quantum yields, uv absorption cross sections

                
Authors: R.K. Talukdar, A. Mellouki, J.B. Burkholder, M.K. Gilles, G. Le Bras, A.R. Ravishankara

Title: Quantification of the Tropospheric Removal of Chloral (CCl3CHO): Rate Coefficient for the Reaction with OH, UV-absorption Cross sections, and Quantum Yields

Journal/Source: J. Phys. Chem. A, 105 (21), 5188-5196, (2001); DOI: 10.1021/jp004632j


Data: table, diagram

Energy/Wavelength range: 200 - 345 nm

Resolution: 1 nm

Temperature: 240 - 360 K

Temperature dependence: 

Pressure/Concentration:

Phase: vapor

pH:


Comments: Upper limits for the O atom quantum yield in CCl3CHO photolysis at 308 and 248 nm were measured to be <0.01 and <0.02, respectively. 
The H atom quantum yields in CCl3CHO photolysis at 193, 248 and 308 nm were 0.04 ± 0.01, <0.01 and <0.002, respectively. The Cl atom quantum 
yield in the photolysis of CCl3CHO at 308 nm was 1.3 ± 0.3.

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