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Diss Factsheets
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EC number: 203-950-6 | CAS number: 112-24-3
- 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)
Description of key information
two ready biodegradation test results, one inherent biodegradation test result and one research result on the use of TETA as sole nitrogen source for microorganisms.
Key value for chemical safety assessment
Additional information
TETA is not biodegraded in (standard and prolonged) Closed Bottle test and should therefore not be classified as readily biodegradable(Biodegradation of various polyethylene amines,van Ginkel 1990; Biodegradation of triethylenetetramine TETA, van Ginkel 1990).Toxicity of TETA to the competent microorganisms and the stringency of the test procedures could account for the recalcitrance of TETA in the Closed Bottle test. Results obtained in the Semi-Continuous Activated Sludge (SCAS) test (inherent biodegradability test) also illustrate that TETA is not completely (ultimately) biodegradable through growth-linked processes. The partial removal of TETA in the SCAS test was attributed to adsorption onto the activated sludge particles. (removal of triethylenetetraamine in the SCAS test, van Ginkel 1992). It is unlikely that growth linked biodegradation of TETA will occur in the environment.
However, co-metabolic transformation of TETA has been demonstrated in batchexperiments. In these experiments TETA was used as sole nitrogen source. Various natural organic compounds may act as carbon source. The decrease of TETA coincided with the accumulation of a degradation product, which indicates that TETA is not completely oxidized.
This finding demonstrates that TETA can be utilized by microorganisms as nitrogen source in the environment.(Triethylenetetramine as a sole source of nitrogen for microbial growth, van Ginkel 1992).
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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