Registration Dossier
Registration Dossier
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EC number: 212-836-5 | CAS number: 873-32-5
Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- no data, secondary reference
- GLP compliance:
- not specified
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The estimated atmospheric half-life of 2-chlorobenzonitrile is 66 days.
- Executive summary:
The photochemical degradation of 2 -chlorobenzonitrile has been estimated by calculation using AOP v1.91 based on atmospheric concentration of OH radicals of 5 * 10^5/cm³.
The calculated reaction rate constant is 2.4 * 10^-13 cm³/(molecule * s), the estimated half-life of 2-chlorobenzonitrile is 66 days.
Direct photolysis is not expected.
Reference
Description of key information
The photochemical degradation of 2-chlorobenzonitrile has been estimated by calculation using AOP v1.91 based on atmospheric concentration of OH radicals of 5 * 10^5/cm³.
The calculated reaction rate constant is 2.4 * 10^-13 cm³/(molecule * s), the estimated half-life of 2-chlorobenzonitrile is 66 days.
Direct photolysis is not expected.
Key value for chemical safety assessment
- Half-life in air:
- 66 d
Additional information
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