Registration Dossier
Registration Dossier
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EC number: 258-207-9 | CAS number: 52829-07-9
Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable method
- Principles of method if other than guideline:
- Calculation using SRC AOP v1.92
- GLP compliance:
- no
- Estimation method (if used):
- PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000 molecules/cm3
- Degradation rate constant: 151.57E-12 cm3/molecules*s
- Computer programme: SRC AOP v1.92
- Other: assuming a 24-hour day - DT50:
- 2.54 h
Reference
Description of key information
After evaporation or exposure to the air, the product will be rapidly degraded by photochemical processes.
Key value for chemical safety assessment
- Half-life in air:
- 2.54 h
- Degradation rate constant with OH radicals:
- 5 000 000 cm³ molecule-1 d-1
Additional information
Based on a calculation according to AOPWIN v1.92, the tested substance is indirectly photodegraded by reaction with hydroxyl radicals in the atmosphere with a half-life (t1/2) of about 2.54 hours taking into account a 24-h day and a mean OH radical concentration of 0.5E06 radicals per cm³. (BASF SE, 2010).
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