Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 244-256-3 | CAS number: 21178-63-2
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: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 999
- Report date:
- 1999
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Chromium trioleate
- EC Number:
- 244-256-3
- EC Name:
- Chromium trioleate
- Cas Number:
- 21178-63-2
- Molecular formula:
- C18 H34 O2 .1/3 Cr
- IUPAC Name:
- chromium(3+) tris((9Z)-octadec-9-enoate)
- Details on test material:
- Chrom (III)-oleat
Oleic acid Cr III-salt
Batch No.: 5
Product No.: 78623
Purity: no data
Report of the Analytical Laboratory No.: 99L00034
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Municipal activated sludge from laboratory wastewater treatment plants fed with municipal sewage. Concentration of dry substance 30 mg/L.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 40 - 50
- Sampling time:
- 28 d
- Details on results:
- RS-Freetext:
Preliminary investigations:
ThOC: 713 mg/g
ThOD: 2632 mg/g
Main study:
Degree of degradation of the reference substance in the inhibition control after 14 d: 50 - 60 % BOD/ThOD
Degree of degradation of the test substance in the abiotic control after 28 d: 0 - 10 % BOD/ThOD
Duration of adaptation phase: ca. 1 d
Duration of degradation phase: ca. 25 d
Kinetic of test substance (in %):
= 11 after 2 day(s)
= 27 after 7 day(s)
= 38 after 14 day(s)
= 45 after 21 day(s)
= 49 after 28 day(s)
Kinetic of control substance (in %):
= 70 ... 80 after 14 day(s)
Applicant's summary and conclusion
- Interpretation of results:
- other: not readily biodegrdable (according to OECD criteria), partly or moderately biodegradable
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.
