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EC number: 951-974-7 | CAS number: -
- 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

Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.054 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.005 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.74 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 109 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 10.9 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 534 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
For the assessment of ecotoxicity of MDEA Esterquat C18 satd. short-term and long-term toxicity data for aquatic, sediment and soil organims are not available. Therefore, ecotoxicity is assessed by read-across to the closely related source substances MDEA-Esterquat C16-18 and C18 unsatd, MDIPA Esterquat C16-18 and C18 unsatd. and MDIPA Esterquat C18 unsatd.. A justification for read-across is given in the aquatic toxicity endpoint summary.
PNEC aqua (freshwater)
Acute and chronic freshwater aquatic toxicity studies with fish, Daphnia and algae are available. In accordance with the Guidance on information requirements and chemical safety assessment, Chapter R.10: Characterisation of dose [concentration]-response for environment, 2008, an assessment factor of 10 was applied to the lowest chronic toxicity value (72 h ErC10 inPseudokirchneriella subcapitata= 0.54 mg/L). Based on the available data, a PNECaqua (freshwater) = 0.054 mg/L was calculated.
PNEC aqua (marine water)
Acute and chronic freshwater aquatic toxicity studies with fish, Daphnia and algae are available. In accordance with the Guidance on information requirements and chemical safety assessment, Chapter R.10: Characterisation of dose [concentration]-response for environment, 2008, an assessment factor of 100 was applied to the lowest chronic toxicity value (72 h ErC10 in freshwater algae, Pseudokirchneriella subcapitata = 0.54 mg/L). Based on the available data, a PNECaqua (marine water) = 0.0054 mg/L was calculated.
PNEC aqua (intermittent release)
A PNEC aqua (intermittent release) was not calculated as the registration substance has a wide dispersive use. Intermittent releases are therefore not relevant.
PNEC STP
In accordance with the Guidance on information requirements and chemical safety assessment, Chapter R.10: Characterisation of dose [concentration]-response for environment, 2008, an assessment factor of 10 was applied to the NOEC value (>47.4 mg a.i./L) of a OECD Guideline 209 study. The calculation yields a PNECmicroorganisms >4.7 mg/L.
PNEC sediment(freshwater), PNEC sediment (marine waters)
No toxicity data for sediment dwelling organisms are available. Thus, the PNEC for freshwater and marine sediment has been calculated with the equilibrium partitioning method using EUSES 2.1.
The following data have been taken into account for calculation:
Molecular weight |
703 g/mol |
Melting point |
54°C |
Boiling point |
250°C |
Vapour pressure |
1E-06 Pa at 25°C (was set to minimum by EUSES) |
Water solubility |
17.6 mg/L at 19.7°C |
Koc |
20225 L/kg (geometric mean of the two sludges and the two soils) |
PNEC Aqua(freshwater) |
0.054 mg/L
|
PNEC Aqua(marine water) |
0.0054 mg/L
|
PNEC soil
Terrestrial toxicity values, although scientifically robust, are in this case not relevant for the derivation of the PNECsoil. No effects were seen at the highest MDEA-Esterquat C16 -18 and C18 unsatd. concentrations tested (earthworms, higher plants), which was 47.4 mg/kg dry weight. It is expected that the potential for effects to occur in the terrestrial environment due to of MDEA Esterquat C18 satd. are minimal and the corresponding PNECsoil is higher as derived with EPM.
The PNECsoil is estimated via the equilibrium partitioning method using EUSES 2.1.
The following data have been taken into account for calculation:
Molecular Weight |
703 g/mol |
Vapour Pressure |
1,00E-06 Pa at 25°C (was set to minimum by EUSES) |
Water solubility |
17.6 mg/L at 19.7°C |
Koc |
494 x 10E03 L/kg (geometric mean of the two soils) |
PNEC freshwater |
0.054 mg/L |
PNEC Air
Due to the very low vapour pressure of the registration substance (<10E-9 Pa at 20°C) the risk for air breathing animals and humans is expected to be negligible.
Secondary poisoning
Bioaccumulation potential has been estimated to be low (BCF = 71 L/kg). There is no concern for secondary poisoning and therefore no PNECoral (secondary poisoning) was derived.
Conclusion on classification
Based on reliable, relevant and adequate data, MDEA Esterquat C18 satd. is assessed to be not a PBT or vPvB substance.
According to GHS Regulation EC No 1272/2008 MDEA Esterquat C18 satd. has to be classified as “hazardous to the aquatic environment”, chronic 3 (H412, Harmful to aquatic life with long lasting effects) based on the 72h EC10 of 0.54 mg/L for Pseudokirchneriella subcapitata, obtained with the read-across substance MDIPA Esterquat C18 unsatd. and the 35 d NOEC of 0.686 mg/L for Pimephales promelas, obtained with the read-across substance MDEA-Esterquat C16-18 and C18 unsatd..
The substance does not need to be classified as “hazardous to the ozone layer”.
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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