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EC number: 215-538-3 | CAS number: 1330-39-8
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 18, 1994 to January 06, 1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- None
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- Version / remarks:
- 1992
- Deviations:
- no
- Principles of method if other than guideline:
- Guideline followed
- GLP compliance:
- yes
Test material
- Reference substance name:
- Trisodium [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-)
- EC Number:
- 215-538-3
- EC Name:
- Trisodium [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-)
- Cas Number:
- 1330-39-8
- Molecular formula:
- C32H13CuN8O9S3.3Na
- IUPAC Name:
- trisodium [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-)
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Identification: FAT 20063/D TE
Lot: BS-BOP 01-15
Appearance: Dark blue powder
Constituent 1
- Specific details on test material used for the study:
- - Code number: FAT 20063/C
- Batch-Nr.: 3.46
- Purity: 81.9 %
- Appearance: solid
- Solubility: >10 g/I [in water]
- Storage: room temperature
- Expiration date: 04/99
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge: Activated sludge of a communal sewage treatment plant Ara Reinach collected on 18.10.94
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 150 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Reference substance
- Reference substance:
- diethylene glycol
- Remarks:
- CIBA-Nr. FAT 90019/E .Fluka No. 32170
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Remarks on result:
- other:
- Details on results:
- Adsorption:
The adsorption of the test substance FAT 20063/C after 3 hours was: 1 %
Biodegradation:
The biodegradation of the test substance FAT 20063/C after 28 days was: 0 %
Total Elimination:
(regarding the adsorption and the biodegradation) The total elimination of the test substance FAT 20063/C over the whole test period of 28 days was (average of 2 tests running in parallel): 1 %
BOD5 / COD results
- Results with reference substance:
- The biodegradation, corrected by the blank control and measured as DOC (mg/l) is: 98 % (7th day & average of 2 tests running in parallel)
Any other information on results incl. tables
None
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The test substance did not show any biodegradation under the test conditions.
- Executive summary:
The inherent biodegradability of FAT 20063/C was determined in a modified Zahn-Wellens Test according to OECD Guideline 302B, in compliance with GLP. The test substance FAT 20063/C and the reference substance Diethylenglycol, respectively, were tested in concentrations of 150 mg/l DOC. The adsorption of the test substance after 3 hours was estimated to be 1 %. The biodegradation of the test substance FAT 20063/C after 28 days was 0 %. Hence, the total elimination of the test substance over the whole test period of 28 days was 1 %. The biodegradation of the reference substance after 7 days was estimated to be 98 %. Based on the findings of the study, it can be concluded that the test substance did not show any biodegradation under the test conditions.
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