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EC number: 212-660-9 | CAS number: 839-90-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study, essential test conditions available
- Remarks:
- (as given in OECD SIDS)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 14 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Reference substance:
- aniline
- Parameter:
- other: from BOD
- Value:
- 0
- Sampling time:
- 14 d
- Remarks on result:
- other: the oxygen consumption was continuously measured
- Key result
- Parameter:
- % degradation (TOC removal)
- Value:
- 2.5
- Sampling time:
- 14 d
- Remarks on result:
- other: After termination of the test, the residual amount of the test substance was determined with TOC meter
- Key result
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 7.2
- Sampling time:
- 14 d
- Remarks on result:
- other: After termination of the test, the residual amount of the test substance was determined with LC
- Details on results:
- Kinetic: Not stated
Degradation products: no - Interpretation of results:
- under test conditions no biodegradation observed
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study, essential test conditions available.
- Remarks:
- (as given in OECD SIDS)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
- Version / remarks:
- (1981)
- GLP compliance:
- not specified
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: Effluent from a wastewater plant treating municipal sewage
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 48 mg/L
- Based on:
- test mat.
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
- Reference substance:
- benzoic acid, sodium salt
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- Degradation: 0 % by DOC after 28 days
Elimination: 0 % by DOC after 28 days - Results with reference substance:
- Degradation of reference: 100% DOC after 4 day(s)
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Tris(2-hydroxyethyl) isocyanurate is not readily biodegradable.
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study, essential test conditions available
- Remarks:
- (as given in OECD SIDS)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- not specified
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 1 000 mg/L
- Based on:
- test mat.
- Initial conc.:
- 400 mg/L
- Based on:
- DOC
- Reference substance:
- diethylene glycol
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Results with reference substance:
- Degradation of reference: 100% DOC after 7 day(s)
- Interpretation of results:
- under test conditions no biodegradation observed
Referenceopen allclose all
No inhibitory effect : 41% elimination of DOC after 13 days the inhibition control
Description of key information
Biodegradation in water: screening tests: Not readily biodegradable: 0 – 7.2% (BOD, TOC removal, LC) in 14 days (OECD TG 301C), 0% (DOC) in 28 days (OECD TG 301E), 0% (DOC) in 28 days (OECD TG 302B)
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
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