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Diss Factsheets
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EC number: 938-649-5 | CAS number: 1469982-92-0
- 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
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
The pKa values for the test substance are 10.02, 9.21 and 4.42 at 25ºC.
Key value for chemical safety assessment
Additional information
Result are based on read-across to a substance with the same dissociating part of the molecule as for the substance registered. It is assumed that length of the hydrophobe has no significant effect on the pKa value. The pKa values for the test substance are 10.02, 9.21 and 4.42 at 25ºC from the read across study. Furthermore, the pKa is not strongly temperature dependent.
Based on these results it can be presumed that the substance would be ionised at environmentally relevant pH's.
Discussion on Read-Across:
This literature search was performed to evaluate dissociation constant data for Tall oil diethylenetriamine imidazoline, which is assessed to be a suitable read-across substance to Fatty acids, C18 unsaturated, reaction products with diethylenetriamine, acetate salts.
The dissociating part of the molecule assessed was the same as the registered substance (Tall oil diethylenetriamine imidazoline). It is assumed that length of the hydrophobe has no significant effect on the pKa values. The neutralisation of the Tall oil diethylenetriamine with actetic acid, which forms the acetate salts form of the substance, does not impact on the main dissociating part of the molecule assessed, nor the length of the hydrophobic chains. The neutralisation and presence of acetate salts groups is therefore not anticipated to significantly effect the dissociation properties of the substance and the pKa values, and there it can be presumed that
Fatty acids, C18 unsaturated, reaction products with diethylenetriamine, acetate salts, would be ionised at environmentally relevant pH's.
It is therefore considered that the results obtained from the literature search to assess Tall oil diethylenetriamine imidazoline are suitable foruse in the evaluation of Fatty acids, C18 unsaturated, reaction products with diethylenetriamine, acetate salts.
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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