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EC number: 931-216-1 | CAS number: 1335202-95-3
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis
Oleic acid-based TEA-Esterquat is readily biodegradable. Therefore, a hydrolysis study is not required. However, supporting data are available for the structurally related source substance partially unsaturated TEA-Esterquat:
The hydrolysis of partially unsaturated TEA-Esterquat as a function of pH was investigated in a study conducted according to OECD Guideline 111 and EU-method C.7. (Preliminary test; main test not conducted due to the pronounced biodegradability of the test substance).
At pH 4 and 50°C, the degradation of the main component of partially unsaturated TEA-EQ was less than 10% over a period of 120 h. The corresponding half-life at 25°C is therefore assumed to be above one year (default assumption acc. to guidelines). In contrast, at pH 7 and 9 and 50°C, more than 10% of the test item were hydrolysed within 120 h. Based on the results half-lives of 17 (pH 7) and 11.3 d (pH 9) were deduced from the reaction rate constants at 25°C. Di- and mono-ester were detected as degradation products
Biodegradation
Aerobic biodegradation
The ready biodegradation of oleic acid-based TEA-Esterquat was investigated in a study conducted according to OECD Guideline 301B over a period of 28 days and using predominantly domestic sewage sludge micro-organisms as inoculum. The biodegradation rate was determined by measurement of CO2 evolution. The test item proved to be readily biodegradable and fulfilling the 10-d window criterion. The functional control reached the pass level >60% after 14 d. In the toxicity control containing both test and reference item 85% biodegradation ThCO2 occurred within 14 d thus indicating that the test item was not inhibitory at the concentration tested.
Further studies on ready biodegradation are available for the structurally related source substance partially unsaturated TEA-Esterquat:
Several test according to OECD Guideline 301 D (Closed Bottle Test), OECD Guideline 301 C (modified MITI test), OECD guideline 301 F (manometric respirometry test) and OECD Guideline 301 B (CO2 Evolution Test) proved the ready biodegradation of partially unsaturated TEA-Esterquat under aerobic conditions.
One study according to ECETOC Anaerobic Biodegradation (Technical Report No. 28) proved the biodegradation of partially unsaturated TEA-Esterquat under anaerobic conditions.
Anaerobic biodegradation
The anaerobic biodegradation of the source substance partially unsaturated TEA-Esterquat was investigated in a study conducted according to ECETOC Anaerobic Biodegradation (Technical Report No. 28) over a period of 56 days and using anaerobic sludge bacteria from a municipal wastewater treatment plant as inoculum. The biodegradation rate was determined by measurement of dissolved inorganic carbon (DIC). This study is regarded as reliable with restriction and satisfies the guideline requirements for anaerobic biodegradation. The test material attained 76% degradation after 56 days and therefore can be considered as biodegradable under anaerobic conditions.
Simulation test
Oleic acid-based TEA-Esterquat is readily biodegradable. Therefore, simulation testing in water and sediment is not required.
However, supporting data are available for the structurally related source substance partially unsaturated TEA- Esterquat: The aerobic biodegradation of the source substance partially unsaturated TEA-Esterquat was studied in a test according to OECD Guideline 303 A (Simulation Test - Aerobic Sewage Treatment. A: Activated Sludge Units) and in compliance with the – GLP standards. Activated sludge was collected from the aeration tank of a waste water treatment plant treating predominantly municipal sewage. The test system consisted of 2 laboratory waste water treatment plants (one receiving test material, one did not receive test material (control); the units were not coupled). After periods of stabilizing and adaptation; increasing amounts of partially unsaturated TEA-Esterquat were introduced into the system: 2.5 mg to 20 mg/L DOC. Degradation was followed by DOC measurements in the influent and effluent of the model waste water treatment plant. Samples were analyzed at day 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 15, 16, 17, 18, and 23. The test substance was biodegraded by 84.9% on average during 23 d.
Bioaccumulation
No experimental data on bioaccumulation is available for the target substance oleic acid-based TEA-Esterquat. However, data from the structurally related substance DODMAC (Dimethyldioctadecylammonium chloride) is provided. A justification for read-across is given in section “Bioaccumulation: aquatic / sediment”.
For the target substance oleic acid-based TEA-Esterquat a BCF of the same order of magnitude and not higher than DODMAC (13 L/kg) is to be expected.
Adsorption / desorption
No data on adsorption/desorption is available for the target substance oleic acid-based TEA-Esterquat. However, data from the structurally related substance DODMAC (Dimethyldioctadecylammonium chloride) is provided. A justification for read-across is given in section “Adsorption / desorption”.
DODMAC has a chemical structure similar to that of oleic acid-based TEA-Esterquat. The chemical structure of the registration substance includes, in contrast to DODMAC, two polar ester moieties, which will lower adsorption potential. Thus, DODMAC could be considered as a worst case. No calculated Koc is provided for p oleic acid-based TEA-Esterquat, but instead the value obtained with the structurally closely related substance DODMAC (10,000 L/kg dw for both Kp(sed) and Kp(soil)) is used for chemical safety assessment.
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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