Registration Dossier
Registration Dossier
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EC number: 221-394-2 | CAS number: 3085-30-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- standard dilution BOD and dichromate COD
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- BOD and COD of some petrochemicals
- Author:
- Bridie et al.
- Year:
- 1 979
- Bibliographic source:
- Water Research 13 (7) 627-630
- Reference Type:
- secondary source
- Title:
- n-Butanol (CAS No. 71-36-3) JACC No. 41
- Author:
- ECETOC
- Year:
- 2 003
- Bibliographic source:
- European Centre for Ecotoxicology and Toxicology of Chemicals 4 Avenue E. Van Nieuwenhuyse (Bte 6), B-1160 Brussels, Belgium.
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: BOD APHA 219 (1971)
- Qualifier:
- according to guideline
- Guideline:
- other: COD ASTM D 1252-67
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Butan-1-ol
- EC Number:
- 200-751-6
- EC Name:
- Butan-1-ol
- Cas Number:
- 71-36-3
- Molecular formula:
- C4H10O
- IUPAC Name:
- butan-1-ol
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Remarks:
- for BOD test
- Details on inoculum:
- BOD 0.5 mg/L allylthiourea was added to the sludge to prevent nitrification
- Duration of test (contact time):
- 5 d
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- 500 mL test solution with 10 mL effluent
Duplicate samples of glucose and glutamic acid were run in parallel
Results and discussion
% Degradation
- Parameter:
- other: BOD as % ThOD
- Value:
- 16
- Sampling time:
- 5 d
BOD5 / COD results
BOD5 / CODopen allclose all
- Parameter:
- BOD5
- Value:
- 0.41 g O2/g test mat.
- Parameter:
- COD
- Value:
- 2.46 g O2/g test mat.
- Parameter:
- COD
- Value:
- 95 other: % of ThOD
- Remarks on result:
- other: ThOD = 2.59 g/g
Any other information on results incl. tables
BOD5*100/ThOD 16%
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The BOD after 5 days is 16% of the ThOD.
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