Registration Dossier
Registration Dossier
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Main component 6 (isomer): asym. 1:2 Cr(III)-complex of: A: 3-hydroxy-4-(2-hydroxy-naphthalene-1-ylazo)naphthalene-1-sulfonic acid, Na-salt and B: 1-[2-hydroxy-5-(4-methoxy-phenylazo)phenylazo]naphthalene-2-ol; Main component 8 (isomer): asym. 1:2 Cr-complex of: A: 3-hydroxy-4-(2-hydroxy-naphthalene-1-ylazo)-naphthalene-1-sulfonic acid, Na-salt and B: 1-[2-hydroxy-5-(4-methoxy-phenylazo)-phenylazo]-naphthalene-2-ol
EC number: 417-280-9 | CAS number: 30785-74-1 BLACK UL 1253
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
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 C (Inherent Biodegradability: Modified MITI Test (II))
Test material
- Test material form:
- solid: particulate/powder
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- ca. 30 mg/L
- Based on:
- ThOD
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 0
- Sampling time:
- 28 d
- Remarks on result:
- other:
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
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