Registration Dossier
Registration Dossier
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EC number: 221-882-5 | CAS number: 3268-49-3
Phototransformation in water
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in water
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Study type:
- indirect photolysis
- Principles of method if other than guideline:
- Calculated from the reaction rate constant of the test substance with hydroxyl radicals in freshwater as published by Buxton et al (1988) and the conccentration of OH-radicals in freshwater as published by Mill (1999).
- GLP compliance:
- no
- Type of sensitiser:
- OH radical
- Concentration of sensitiser:
- 36 000 molecule/cm³
- % Degr.:
- 63
- Sampling time:
- 23.5 d
- Test condition:
- Indirect photolysis
- Rate constant (for indirect photolysis):
- 0 cm³/(molecule*sec)
- Conclusions:
- A degradation by 63% after 23.5 d by indirect photolysis was calculated from the reaction rate constant of the test substance with hydroxyl radicals in freshwater as published by Buxton et al (1988) and the conccentration of OH radicals in freshwater as published by Mill (1999).
Reference
Description of key information
Degradation by indirect photolysis: 63% after 23.5 days.
Key value for chemical safety assessment
Additional information
A degradation by 63% after 23.5 d by indirect photolysis was calculated from the reaction rate constant of the test substance with hydroxyl radicals in freshwater as published by Buxton et al (1988) and the concentration of OH-radicals in freshwater as published by Mill (1999).
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