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Diss Factsheets
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EC number: 285-080-7 | CAS number: 85029-55-6
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: screening test, other
- 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:
- comparable to guideline study with acceptable restrictions
- Justification for type of information:
- Refer to read-across justification document attached in section 13
- Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- yes
- Remarks:
- Read-across from study ref. van Ginkel, 2010 contains minor deviations
- Parameter:
- % degradation (O2 consumption)
- Value:
- 17
- Sampling time:
- 28 d
- Remarks on result:
- other: Gancet, 2009
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 24
- Sampling time:
- 28 d
- Remarks on result:
- other: v. Ginkel 2010; 61% at day 60
- Conclusions:
- The read-across from two studies on 68555 -22 -6 to 85029 -55 -6 concludes that the test material is sufficiently structurally similar to the submitted material that it will share similar biodegradation properties. Therefore, the registered substance is also considered as 'inherently biodegradable".
Reference
Description of key information
Based on the currently available data on hydrolysis and biodegradation are imidazolines quickly hydrolyzed to amidoamines under ambient conditions. The (micro-organism mediated) hydrolysis of these amidoamines is probably the rate determining step. After breaking the amido bond, the substance is completely degraded to H2O, CO2 and the starting polyethyleneamine, with exception of DETA which is also completely biodegraded.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
Additional information
Imidazoline DETA
Fatty acid C18 unsaturated diethylenetriamine imidazoline may be biocidal to micro-organisms and consequently inhibitory in all ready biodegradability tests. Reduction of the toxicity of fatty amine derivatives in ready biodegradability tests has therefore been achieved through the addition silica gel (van Ginkel et al, 2008). For toxic substances, the specified high test substance concentrations in ready biodegradability tests are controversial because substances are present in the environment in the sub μg/L range. Fatty acid C18 unsaturated diethylenetriamine imidazoline tested in the presence of silica gel was biodegraded 24% at day 28 in the Closed Bottle test. In the prolonged Closed Bottle test Fatty acid C18 unsaturated diethylenetriamine imidazoline was biodegraded 61% at day 60 (Akzo Nobel, 2010a). The biodegradation reached at the day 60 demonstrates that Fatty acid C18 unsaturated diethylenetriamine imidazoline is ultimately biodegradable and not persistent. In another Closed Bottle test a biodegradation of 17 % was reached at day 28 (Arkema, 2009).
Complete (ultimate) degradation of tall oil diethylenetriamine imidazoline was also found in a semi continuously fed activated sludge (SCAS) test (van Ginkel et al, 2010b). In this test removal percentages of organic carbon of >90% were achieved. Complete degradation of Fatty acids C18 unsat. diethylenetriamine imidazoline can also be concluded from the ready biodegradability of fatty acids and diethylenetriamine formed upon hydrolysis (Popp, 1977; van Ginkel et al 1995)
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.
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