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EC number: 931-209-3 | CAS number: 1337540-53-0
- 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
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
The bioaccumulation is expected to be low.
No data are available for fully saturated TEA-Esterquat. Measured BCF data are available for a structurally closely related material, DODMAC (Dimethyldioctadecylammonium chloride, CAS-No. 107-64-2).
Key value for chemical safety assessment
- BCF (aquatic species):
- 13 L/kg ww
Additional information
No data are available for fully saturated TEA-Esterquat. According to REACH regulation (Annex XI, 1.5), the study on aquatic bioaccumulation does not need to be conducted for the substance under investigation if data from a structurally closely related material are available.
Measured BCF data are available on a structurally closely related material, DODMAC (Dimethyldioctadecylammonium chloride, CAS-No. 107-64-2). DODMAC has a chemical structure similar to the TEA-EQ Diester. TEA-Esterquats are UVBC substances. The main component is the dialkylester compound, besides smaller amounts of the monoalkyl- and trialkylester.
The molecular diester moiety of the registration substance for which the highest bioaccumulation potential is expected is the diester with saturated estergroups, chain length C18 (Compound I) anddiffers from DODMAC by the ester linking groups between the alkyl chains (of C18chain length) and the head group (effectively the quarternary ammonium group). Minor components are the TEA-Esterquat monoester and triester.
Regarding lipophilic properties of the registration substance, the registration substance bioaccumulation is expected to be lower than that for DODMAC: The chemical structure of the registration substance includes, in contrast to DODMAC, one, two or three polar ester moieties and one or two ethanol moietiesthat lower hydrophobic character. The monoester is considerably less lipophilic than the main component, TEA-Esterquat diester. The minor component, TEA-Esterquat triester with alkyl chain length C18, should be more lipophilic than the TEA-Esterquat diester. All TEA-Esterquats are biodegradable/hydrolysable which also will result in lower environmental concentrations for the registration substance. TEA-Esterquats are metabolised in higher organisms. The substances are de-esterified and further degraded via the fatty-acid metabolism.
DODMAC is poorly biodegradable and much more stable than the registration substance. For DODMAC, no abiotic degradation is expected. The degradation rate is very low for biotic degradation in water (1.4·10-4day-1) (EU RAR, 2009).
Juvenile fish (Pimephales promelas) were exposed to the structurally similar substance DODMAC for 24 h under flow-through conditions, followed by a depuration period of 72 h. A BCF of 104 is calculated based on the uptake rate constant (k1) of 1.35 mg/g·h and the depuration rate constant (k2) of 0.013 mg/g·h (Versteeg & Shorter, 1992).
The measured BCF values for similar substances (DODMAC, DHTDMAC (Dihydrogenated Tallow Alkyl Dimethyl Ammonium Chloride)) are 12-32 (BUA-Report 191, 1995) and 13-256 (EU RAR, 2002). The conclusion for DODMAC was “bioaccumulation is indicated, but it is assumed that it is low under environmental conditions. A BCF of 13 l/kg is used in the risk assessment…” (EU RAR, 2009).
The calculated BCF value forTEA-Esterquatis 70.8 (BCFWIN v2.17).
The low bioavailability of the substance (due to rapid and strong sorption to negatively charged surfaces in the aquatic environment) in combination with the rapid (bio)degradation of the bioavailable fraction (mainly due to the hydrolysis of the ester bond), make high bioconcentration factors for the substance even more improbable (Comberet al., 2003 in Hera, 2008).
For fully saturated TEA-Esterquat, a BCF of the same order of magnitude as the BCF of DODMAC (13 l/kg) is expected. The above information is considered as sufficient to support the conclusion that the bioaccumulation potential of the registration substance is expected to be low.
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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