Registration Dossier
Registration Dossier
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EC number: 810-213-8 | CAS number: 1370461-06-5
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May/June 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted according to OECD guideline and Good Laboratory Practice. The results in this study are consistent with all validity criteria and the test is valid according to the test guideline of this study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- sra-[(2E)-2-butenedioato(2-)hydroxy aluminium]
- EC Number:
- 810-213-8
- Cas Number:
- 1370461-06-5
- Molecular formula:
- C4 H3 Al O5
- IUPAC Name:
- sra-[(2E)-2-butenedioato(2-)hydroxy aluminium]
- Test material form:
- solid: crystalline
- Details on test material:
- Synonym: Basolite A520
Batch identification: 13-0001-2
Content: 85.8 g/100 g (based on the determined content of fumarate)
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Municipal activated sludge from the wastewater treatment plant of of Mannheim, Germany.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- other: Total Organic Carbon
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- Test temperature: 22 °C +/-2
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 55
- Sampling time:
- 28 d
- Details on results:
- Duration of the adaptation phase: 4 days
BOD5 / COD results
- Results with reference substance:
- Degree of biodegradation after 14 days: 67% CO2/ThCO2
Any other information on results incl. tables
The selected concentration of 20 mg/L TOC/L (approx. 74 mg/L test substance), tested in an additional inhibition control, caused no toxic effect to microorganisms.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other:
- Conclusions:
- The test substance was not readily biodegradable under the conditions of this test. Based on the rate of biodegradation of 50-60% CO2/ThCO2 at the end of the test the test substance can be evaluated as moderately or partly biodegradable in this test.
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