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Registration Dossier
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EC number: 302-446-4 | CAS number: 94109-09-8
Biodegradation in water and sediment: simulation tests
Administrative data
- Endpoint:
- biodegradation in water: sewage treatment simulation testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 301 F
- GLP compliance:
- yes
Test material
- Reference substance name:
- Tri(tridecyl) benzene-1,2,4-tricarboxylate
- EC Number:
- 302-446-4
- EC Name:
- Tri(tridecyl) benzene-1,2,4-tricarboxylate
- Cas Number:
- 94109-09-8
- Molecular formula:
- C48H84O6
- IUPAC Name:
- tri(tridecyl) benzene-1,2,4-tricarboxylate
- Test material form:
- liquid
- Details on test material:
- - Moisture content: <= 0.1%
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: P-2960F-10
- Expiration date of the lot/batch: November 2013
- Purity test date: > 99%
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature
- Stability under test conditions: Stable
- Solubility and stability of the test substance in the solvent/vehicle: no vehicle
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Temperature (°C) at time of collection:
incubation temperature 22.1°C +- 0.8°C (deviation)
- Source of activated sludge (e.g. location, contamination history): Annacis Island domestic wastewater treatment pilot plant, Delta, BC
- Inoculum Pretreatment: Sludge was centrifuged, supernaturant discarded, and sludge pellet re-suspended in mineral medium twice; sludge was brought up to the original volume; areated in the dark at test temperature until use
- Biomass concentration (mg/L) used in test: 14 mL - Duration of test (contact time):
- ca. 28 d
Initial test substance concentration
- Initial conc.:
- ca. 37 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
Results and discussion
- Test performance:
- OECD 301 F
% Degradation
- Key result
- % Degr.:
- ca. 2
- Parameter:
- O2 consumption
- Sampling time:
- 28 d
- Transformation products:
- not measured
Applicant's summary and conclusion
Validity criteria
- Validity criteria fulfilled:
- yes
- Conclusions:
- Tridecyl Trimellilate did not surpass the 60% biodegradation mark within a 10-day window in a 28 days exposure period, it cannot be considered readily bodegradable.
The test item did not have an adverse effect on the microorganisms in the test.
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