Registration Dossier
Registration Dossier
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EC number: 279-087-4 | CAS number: 79135-87-8
Mode of degradation in actual use
Administrative data
- Endpoint:
- mode of degradation in actual use
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 981
Materials and methods
- Principles of method if other than guideline:
- Static method Hoechst No 4, November 1973
- GLP compliance:
- no
Test material
- Reference substance name:
- Optical Brightener 380
- IUPAC Name:
- Optical Brightener 380
Constituent 1
Results and discussion
Any other information on results incl. tables
| Method | Concentration | Duration (d) | Elimination % | Period | |||
| mg/l | mg TOC/l | After 3 hrs | Average | Scattering | |||
| Static method | 4890 | 405 | 11 | 0 | 11.5 | 10 - 13.5 | 7 - 11 |
| 1254 | 112.5 | 14 | 7 | 17.5 | 10 - 22 | 2 - 14 | |
| Static method with adopted sludge | 1500 | 115 | 14 | 0 | 0 | ||
Applicant's summary and conclusion
- Conclusions:
- Bioelimination (14d): ca 17.5 %
- Executive summary:
The bioelimination potential of the substance was investigated in accordance with the Static method Hoechst No 4, Novmeber 1973. Unfortunately, a complete test report is not available and only a sheet of test results can currently be retrieved; therefore, a reliability cannot be assigned.
The bioelimination was monitored by the measurement of Total Organic Carbon. Over a priod of 11 - 14 days the average elimination of the substance was around 11.5 - 17.5 %.
Conclusion
Bioelimination (14d): ca 17.5 %
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