Registration Dossier
Registration Dossier
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EC number: 273-601-0 | CAS number: 68990-47-6
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2000
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Fatty acids, tall-oil, reaction products with diethylenetriamine, maleic anhydride, tetraethylenepentamine and triethylenetetramine
- EC Number:
- 273-601-0
- EC Name:
- Fatty acids, tall-oil, reaction products with diethylenetriamine, maleic anhydride, tetraethylenepentamine and triethylenetetramine
- Cas Number:
- 68990-47-6
- Molecular formula:
- The substance is a UVCB substance. One of the most likely and the smallest molecule arising from the reaction process is assumed to be: C18H33O. C18H31O. 2C4H12N3 . C4H2O2
- IUPAC Name:
- Reaction product of 2,5-Furandione with reaction products of tall-oil fatty acids, diethylenetriamine, triethylenetetramine and tetraethylenepentamine
- Details on test material:
- - Name of test material (as cited in study report): Polyamide
- batch no.2108/9
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, industrial (adaptation not specified)
- Details on inoculum:
- derived from the secondary effluent of Lamberti's tratment plant. The volume used was filtered and added to the test medium.
- Duration of test (contact time):
- 28 d
Reference substance
- Reference substance:
- other: Phathalic dipotassium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 2.7
- Sampling time:
- 28 d
- Details on results:
- The dissolved oxygen concentration were determined electrochemically using an oxygen electrode.
BOD was than calculated by subtracting the oxygen depletion of the test substance from the oxygen depletion of the inoculum blank.This corrected depletion was then divided by the concentration of the test substance to obtain the specific BOD as mg oxygen per mg test substance and, finally, the % of biodegradation was obtained by dividing the specific BOD by the specific COD.
Applicant's summary and conclusion
- Interpretation of results:
- not inherently biodegradable
- Conclusions:
- the substance is classified "not readly biodegradable".
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