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EC number: 233-520-3 | CAS number: 10213-78-2
- 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:
- 0.684 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.87 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.068 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 3.5 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.692 mg/kg sediment dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.169 mg/kg sediment dw
- Assessment factor:
- 1
- 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:
- 5 mg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 7.77 mg/kg food
- Assessment factor:
- 90
Additional information
All endpoints are based on measured data applying assessment factors, with PNEC sediment calculated using the equilibrium partition coefficient method.
The PNECaquatic bulk is calculated using the assessment factor proposed by the TGD. As long-term NOECs from species representing two trophic levels are available (algae and daphnia) an assessment factor of 50 may be used. Based on the observed comparable or lower toxicity to fish for primary fatty amine ethoxylates it is considered unlikely that fish toxicity will be critical for primary fatty amine ethoxylates. Hence any additional toxicity testing with fish will not add scientific value to the ecotoxicity profile of the primary fatty amine ethoxylates other than for obtaining a lower assessment factor. It is therefore concluded that for scientific reasons and in accordance to REACH legislation further testing on fish has to be avoided for reasons of animal welfare. This means that it is proposed to waive the long term fish unless a further refinement of the effect assessment is considered necessary based on the outcome of the chemical safety assessment. For primary fatty amine ethoxylates a safety factor of 50 is applied for the derivation of the PNECaquatic, bulk
Conclusion on classification
Ecotoxicity
Due to intrinsic properties of amine containing cationic surfactants river water ecotoxicity tests deliver more reproducible test results with limited uncertainty. As river water has a mitigating effect on ecotoxicity due to sorption of the amines toand suspended matter a factor of 10 should be applied to the L(E)C50to correct for the lower ecotoxicity observed.
Table Available algae, daphnia and fish test results (Klimisch 1, 2 and 4)
Primary fatty amines ethoxylates |
CAS number |
96 h Fish LC50 (µg/L) |
72 h algae ERC50(µg/L) |
72 h algae ERC10/ NOEC (µg/L) |
48 h daphnia EC50 (µg/L) |
21 d daphnia EC50 (µg/L) |
21 d daphnia EC10/ NOEC (µg/L) |
EC50corr(µg/L) (corrected for Classification with Factor 10) |
EC10corr(µg/L) (corrected for Classification with Factor 10)
|
2,2'-(C16-18 (evennumbered) alkyl imino) diethanol |
1218787-30-4 |
|
40 |
34.5 |
|
566 |
320 |
40 |
3.45 |
Figures given in bold are based on read across; figures given in italic and underlined are performed in reconstituted lab water and these are therefore not corrected.
Biodegradability
The primary fatty amine ethoxylates are readily biodegradable
Bioaccumulation potential
No measured BCF fish is available for the primary fatty amine ethoxylates. Standard OECD 305 tests are technically very complicated with these strongly sorbing easily biodegradable substances. Three valid measured log Kow values are however available as presented in the table below.
primary fatty amines ethoxylates |
CAS number |
Measured Log Kow |
2,2'-(C12-18 evennumbered alkyl imino) diethanol |
71786-60-2 |
0.7 |
2,2'-(C16-18 (evennumbered) alkyl imino) diethanol |
1218787-30-4 |
3.6 |
2,2’(octadec-9-enylimino)-bisethanol |
25307-17-9 |
3.4 |
The highest log Kow is observed for 2,2'-(C16-18 (evennumbered) alkyl imino) diethanol (CAS no 1218787-30-4). For this product has also the lowest CMC of 3.5 mg/L was observed. The measured log Kow value of 3.6 indicates a moderate bioaccumulation potential for narcotic substances. For polar narcotics like the primary fatty amine ethoxylates however there is only limited information on the relationship between log Kow and BCF. The observed rapid biotransformation of the C12 to C18 alkyldiethanol amines demonstrates that it will be very unlikely that these substances will accumulate in fish. This was confirmed by the calculated BCF values which were all below the CLP threshold value of 500 L/kg.
With a log Kow of 3.6 the BCFBAF model predicts a BCF of 110 L/kg wwt without metabolism and 14.7 L/kg wwt with metabolism.
Classification according(Classification, Labeling & Packaging Directive 1272/2008/EC)
As all acute ecotoxicity values (corrected and uncorrected) as given in the first table are below 1 mg/L the substances should be classified as acute aquatic hazard category 1. Primary fatty amine ethoxylates are all ‘readily biodegradable’ and have a measured log Kow < 4. Based on long-term studies a classification for chronic aquatic toxicity is warranted according to 2nd ATP to CLP. This leads to the following environmental classification accordingfor n-Primary alkyl amines ethoxylates
Acute (short-term) aquatic hazard category 1
M factor 10
Chronic aquatic hazard category 1
M factor 1
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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