Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 939-249-3 | CAS number: 97926-05-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: BOD-Test for Insoluble Substances (BODIS)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 146340-15-0
- EC Number:
- 604-520-4
- Cas Number:
- 146340-15-0
- IUPAC Name:
- 146340-15-0
- Details on test material:
- - Batch no.: 00026032
- Water solubility: unlimited
- Colour: yellowish
- Physical state: liquid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum: inoculum from domestic waste water sewage plant Hochdahl
- Concentration of inoculum: 50 mg/L - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- COD
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST SYSTEM
- Test vessel: flasks with nominal volume of 300 ml
- Fill volume: 200 ml nominal
Reference substance
- Reference substance:
- other: Sodium acetate trihydrate
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 67
- Sampling time:
- 28 d
- Details on results:
- - Degradation kinetic:
Time [d] Degradation [%]
3 7
7 34
14 53
21 63
28 67
BOD5 / COD results
- Results with reference substance:
- - Degradation [%] after 14 d: 81
- Degradation [%] after 28 d: 81
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable, but failing 10-day window
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.
