Registration Dossier
Registration Dossier
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EC number: 203-453-4 | CAS number: 107-02-8
Phototransformation in water
Administrative data
Link to relevant study record(s)
Description of key information
The calculated reaction rate constant for the photo-oxidation of acrolein by OH radicals in water is 6.52 x 10E9 (M-1 x s-1). Assuming a OH radical concentration in water in the range between 1 x 10E-15 and 1 x 10E-18 M and taking into account the calculated reaction rate constant the half-lives can be calculated using the equation t1/2=0.69/k(OH) x OH concentration. The calculations yielded half-lives t1/2 in the range between 30 and 30000 h. Photolysis in water is low.
Key value for chemical safety assessment
Additional information
1. European Union Risk Assessment Report of Acrolein (EU, 2001)
Photo-oxidation in water: The calculated reaction rate constant for the photo-oxidation of acrolein by OH radicals in water is 6.52 x 10-9 (M-1 x s-1).
Note: The EU risk assessment in the original reported an incorrect reaction rate constant of 6.52 x 10E9 M-1 x s-1.
Photolysis in water: Photolysis in water is low.
2. Agreement with further international Reports and Studies published after finalisation of the EU Risk Assessment Report 2001
US ATSDR (2007): no informtion
3. Substantial disagreements in comparison to further international Reports to European Union Risk Assessment Report 2001
-
4. Additional aspects in further international Reports
None
5. Additional information in new Studies, not included in the European Union Risk Assessment Report 2001 or further cited international reports
None
6. Conclusions
Photo-oxidation in water: The calculated reaction rate constant for the photo-oxidation of acrolein by OH radicals in water is 6.52 x 10E9 (M-1 x s-1). Assuming a OH radical concentration in water in the range between 1 x 10E-15 and 1 x 10E-18 M and taking into account the calculated reaction rate constant the half-lives can be calculated using the equation t1/2=0.69/k(OH) x OH concentration. The calculations yielded half-lives t1/2 in the range between 30 and 30000 h.
Photolysis in water: Photolysis in water is low.
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