Registration Dossier
Registration Dossier
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EC number: 202-490-3 | CAS number: 96-22-0
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
After evaporation or exposure to the air, the product will be slowly degraded by photochemical processes with OH-radicals.
Key value for chemical safety assessment
- Half-life in air:
- 8 d
Additional information
Atkinson et al. performed a test on photodegradation of 3 -pentanone using a all-Teflon chamber and OH radicals as sensitizer.. A rate constant of 2.05E-12 cm³/molecule*sec at 23 +/- 2 °C was measured. Calculated for a 24 h day an a assumed OH radical concentration of 500000 molecules/cm³ a half-life in the atmosphere of 7.82 days was calculated.
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