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EC number: 940-273-1 | CAS number: -
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:
- 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- publication
- Title:
- BUA-Stoffbericht 81 - Ameisensäure, Formiate
- Author:
- n.a.
- Year:
- 1 992
- Bibliographic source:
- Beratergremium für Altstoffe (BUA) der Gesellschaft Deutscher Chemiker, S.Hirzel Wissenschaftliche Verlagsgesellschaft
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Formic acid
- EC Number:
- 200-579-1
- EC Name:
- Formic acid
- Cas Number:
- 64-18-6
- Molecular formula:
- CH2O2
- IUPAC Name:
- formic acid
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Water
- Test material form:
- liquid
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, adapted
- Duration of test (contact time):
- ca. 14 d
Initial test substance concentration
- Initial conc.:
- ca. 72 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 98
- Sampling time:
- 1 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The Substance is ready biodegradeble.
- Executive summary:
In OECD screening tests the testsubstance showed a degradation of > 90 %.
In other tests under aerobic conditions with differend types of Water 60 - 95 % of the TOC were measured.
Under anaerobic conditions a degradation of 89 % was determined.
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