Registration Dossier
Registration Dossier
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EC number: 925-045-1 | CAS number: 1184842-87-2
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed in accordance with OECD Guideline and compliant with GLP criteria.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 994
- Report date:
- 1994
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 A (Ready Biodegradability: DOC Die Away Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1184842-87-2
- Cas Number:
- 1184842-87-2
- IUPAC Name:
- 1184842-87-2
- Details on test material:
- - Substance name: Asta-C9 -DioI-Natrium
- Aggregation state: liquid
- Homogeneity: Homogeneous
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Municipal activated sludge from laboratory waste water treatment plants fed with municipal and synthetic sludge.
- Duration of test (contact time):
- 21 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 127 mg/L
- Based on:
- test mat.
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
- Test performance:
- - Phys-chem elimination after 21 days: 10%
- Adaptation phase: 3 days
- Degradation phase: 7 days
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- > 89
- Sampling time:
- 21 d
- Details on results:
- The 10-day window criterion for ready biodegradability is met.
BOD5 / COD results
- Results with reference substance:
- 94% degradation after 1 day.
Any other information on results incl. tables
Elimination of test substance:
Incubation days |
Elimination (%) |
0 |
0 |
1 |
2 |
3 |
3 |
7 |
26 |
10 |
83 |
14 |
87 |
17 |
94 |
20 |
99 |
21 |
89 |
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.
