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EC number: 932-121-8 | CAS number: 1147459-12-8
- 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Kd of Amides, C18-unsatd., N-[3-(dimethylamine)propyl] was found to be in the range of 2500 to 4500 L/kg in the different soils tested. Consequently, with an average of 3300 L/kg, the test substance is considered to be strongly sorptive to soil/sediment particles. The experimental results obtained in this test can be taken as representative for N-[3-(dimethylamino)propyl]-C12-18(even numbered)-alkylamide.
The sorption data (Kd values) should be used as such and not normalized to the OC content of the resp. soils used as sorption is mainly based on ionic interaction and to a much lesser extend to hydrophobic interaction. (Droge & Goss, 2013 Development and Evaluation of a New Sorption Model for Organic
Cations in Soil: Contributions from Organic Matter and Clay Minerals)
Key value for chemical safety assessment
Other adsorption coefficients
- Type:
- log Kp (solids-water in soil)
- Value in L/kg:
- 3.518
- at the temperature of:
- 20 °C
Other adsorption coefficients
- Type:
- log Kp (solids-water in sediment)
- Value in L/kg:
- 3.518
- at the temperature of:
- 20 °C
Other adsorption coefficients
- Type:
- log Kp (solids-water in suspended matter)
- Value in L/kg:
- 3.82
- at the temperature of:
- 20 °C
Additional information
The adsorption/desorption behaviour of Amides, C18-unsatd., N-[3-(dimethylamine)propyl] on soils was evaluated in a study performed in accordance with OECD testing guideline 106 and GLP requirements. At the test conditions the adsorption coefficient Kd was found to be in the range of 2500 to 4500 L/kg in the different soils tested. Consequently, with an average of 3300 L/kg, the test substance is considered to be strongly sorptive to soil/sediment particles.
The amines in the test substance will to a large extent be protonated under ambient conditions and will interact with the negative surface of mineral particles or with negative charges of humic substances. The ionic interactions play a more important role than hydrophobic partitioning with organic matter. The log Koc is therefore considered as a poor predictor of the partitioning behaviour of cationic surfactants in the environment. The sorption test results are therefore not expressed in Koc but in their Kd. The adsorption/desorption behaviour of Amides, C18-unsatd., N-[3-(dimethylamine)propyl] on soils was evaluated in a study performed in accordance with OECD TG 106. At the test conditions the adsorption coefficient Kd was found to be in the range of 2500 to 4500 L/kg in the different soils tested. Consequently, with an average of 3300 L/kg, the test substance is considered to be strongly sorptive to soil/sediment particles. Because ionic interactions play a more important role than hydrophobic partitioning with organic matter, the influence of the chain length on the sorption behaviour is expected to be low, and these experimental results can be taken as representative for N-[3-(dimethylamino)propyl]-C12-18(even numbered)-alkylamide. Furthermore is an influence of the double bond in Amides, C18-unsatd., N-[3-(dimethylamine)propyl] onto sorption is not expected. Because there is no principal difference between soil and sediments considering the sorption properties (EU RAR primary alkyl amines, 2008) and because for cationic surfactants the degree of sorption is not related to the organic carbon content, the value for soil will also be used for sediment and suspended particles. For sludge which consists mainly of organic matter the sorption data as observed for soil are not considered to be representative. This is however not a serious problem because the removal by sorption in a waste water treatment plant will be close to what is observed in the waste water treatment simulation test i.e. < 0.02% removal.
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