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Diss Factsheets
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EC number: 203-063-4 | CAS number: 102-87-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
![](https://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
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
- Study period:
- 2013-01-22 - 2013-02-21
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Municipal activated sludge from the wastewater treatment plant of Mannheim, Germany.
The inoculum was collected on 21 January 2013 from the aeration tank of the plant and
aerated in the laboratory until use. A suitable aliquot of the activated sludge suspension
was sieved by a finely woven mesh with a mesh size about 1 mm. To reduce the content
of inorganic carbon in the blank controls the activated sludge was aerated with carbon
dioxide free air for about 24 hours at 22 ± 2° C.
At the day of exposure the suspension was washed one time with drinking water.
Therefore the aeration was stopped and the sludge was allowed to settle. After settling
the supernatant was discarded and the remaining sludge suspension was filled up with
drinking water and the concentration oft the sludge was adjusted to 6.0 g/L dry weight.
Aliquots of 7.5 mL were added to the test vessels to obtain an activated sludge
concentration of 30 mg/L dry weight.
Reason for the choice of the test system: The test guideline recommends the usage of
activated sludge from a wastewater treatment plant, treating municipal sewage. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 20 mg/L
- Based on:
- ThOD/L
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Reference substance:
- aniline
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 10 - 20
- Sampling time:
- 28 d
- Details on results:
- 4.1. DEGREE OF BIODEGRADATION
Duration of the adaptation phase: 22 days
Degree of biodegradation of the test substance at the
Degree of biodegradation of the test substance at the end of exposure, mean value: 10-20 % CO2/ThCO2
Reference substance: aniline
Degree of biodegradation of the reference substance after 14 days: 79 % CO2/ThCO2
Degree of biodegradation in the inhibition control after 14 days: 41 % CO2/ThCO2
Test temperature: 22 ± 2° C - Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The conclusion that Amines, tri-C8-10-alkyl was not readily biodegradable in this carbon dioxide evolution test is based on the quantitative determination of the formed carbon dioxide in the test substance assays in comparison to the calculated maximal theoretical carbon dioxide production.
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
1. HYPOTHESIS FOR THE ANALOGUE APPROACH
[Describe why the read-across can be performed (e.g. common functional group(s), common precursor(s)/breakdown product(s) or common mechanism(s) of action]
2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
[Provide here, if relevant, additional information to that included in the Test material section of the source and target records]
3. ANALOGUE APPROACH JUSTIFICATION
[Summarise here based on available experimental data how these results verify that the read-across is justified]
4. DATA MATRIX - Reason / purpose for cross-reference:
- read-across source
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 10 - 20
- Sampling time:
- 28 d
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Based on data for a suitable read across substance, one can assume that Tridodecylamine is not readily biodegradable.
Referenceopen allclose all
Test duration | Test sample 1 | Test sample 2 | Test sample mean |
[days] | |||
0 | 0 | 0 | 0 |
1 | 0 | 0 | 0 |
3 | 2 | 0 | 1 |
7 | 2 | -1 | 1 |
10 | 4 | 1 | 3 |
14 | 6 | 2 | 4 |
17 | 8 | 3 | 6 |
21 | 13 | 5 | 9 |
24 | 17 | 6 | 12 |
27 | 22 | 8 | 15 |
28 | 29 | 10 | 20 |
Description of key information
Not readily biodegradable: 10 - 20% in 28 days (OECD 301B, read across)
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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