Registration Dossier
Registration Dossier
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EC number: 202-426-4 | CAS number: 95-51-2
Phototransformation in water
Administrative data
- Endpoint:
- phototransformation in water
- Type of information:
- other: BUA report
- Adequacy of study:
- other information
- Reliability:
- other: BUA report
- Rationale for reliability incl. deficiencies:
- other: BUA report
Data source
Referenceopen allclose all
- Reference Type:
- other: BUA Report
- Title:
- Unnamed
- Year:
- 1 991
- Reference Type:
- other: BUA Report
- Title:
- Unnamed
- Year:
- 1 994
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 992
Materials and methods
- Study type:
- other: BUA report
- Principles of method if other than guideline:
- BUA report
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2-chloroaniline
- EC Number:
- 202-426-4
- EC Name:
- 2-chloroaniline
- Cas Number:
- 95-51-2
- Molecular formula:
- C6H6ClN
- IUPAC Name:
- 2-chloroaniline
Constituent 1
Study design
- Analytical method:
- other: BUA report
- Light source:
- other: BUA report
Sensitiser (for indirect photolysis)
- Type of sensitiser:
- other: BUA report
Results and discussion
Any other information on results incl. tables
BUA report:
The UV spectra of o- amd m-chloroaniline (> 295 nm) indicated that direct photodegradation of both substances is possible. The half-life for the direct phototransformation of o-chloroaniline was estimated to be 2 -3 h. Thus, the direct phototransformation was assessed to contribute markedly to the elimination of o-chloroaniline in the environment. Additionally, for p-chloroaniline a transformation half-life of 3 hours and a photomineralization half-life of 23 days have been determined in a test system simulating field conditions with water from an estuary in daylight during winter 3 cm below the surface. The half -life for direct photodegradation of m-chloroaniline in water is 1.3 hours in light at 313 nm.
There is no measurment on indirect photodegradation for o-chloroaniline available. But for aniline the half-life of indirect photodegradation in water with carbonate radicals in concentrations wich are found in the environment is 11 hours. The half-life of m-chloroaniline should be the same order of magnitude.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
