Registration Dossier
Registration Dossier
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EC number: 203-404-7 | CAS number: 106-50-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening tests
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- other: Not applicable since exclusively summarizing data coming from an existing risk assessment (BUA Report) are presented as executive summary.
Data source
Referenceopen allclose all
- Reference Type:
- other:
- Title:
- No information
- Reference Type:
- other: Risk assessment
- Title:
- Phenylenediamines, BUA Report 97
- Author:
- GDCh-Advisory Committee on Existing Chemicals of Environmental Relevance (BUA)
- Year:
- 1 992
- Bibliographic source:
- edited by the GDCh-Advisory Committee on Existing Chemicals of Environmental Relevance, S. Hirzel, Wissenschaftliche Verlagsgesellschaft, Birkenwaldstraße 44, 70191 Stuttgart, 1995
Materials and methods
Results and discussion
Applicant's summary and conclusion
- Executive summary:
It is difficult to define clearly the ways in which phenylenediamines are eliminated from the hydrosphere. Elimination processes such as oxidation reactions, adsorption, and stripping effects can only be conjectured. It is impossible to say with any degree of certainty for any of the three isomers what proportion of their elimination is accounted for by biodegradation.
The following elimination rates have been found: between 0 and 100 % for p-phenylenediamine. It is assumed that any phenylenediamines released into the atmosphere are destroyed by photodegradation.
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