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Diss Factsheets
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EC number: 231-293-5 | CAS number: 7486-38-6
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Based on the absence of data on ready biodegradability, a read-across approach with adipic acid is applied.
Adipic acid is readily biodegradable as well as inherently biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
For disodium adipate no data on ready biodegradability are
available. Therefore, data of the corresponding acid are taken into
account for assessment and a read-across approach is applied, based on
the following justification. In aqueous media, disodium adipate and
adipic acid acid dissociate into the corresponding anion (1,6-hexandioic
acid ion) and the sodium ion and hydrogen ion (proton), respectively.
Fate, behavior and the ecotoxicological properties of adipic acid and
its disodium salt are thought to be an effect of the di-carboxylate ion
rather than of the sodium ion or the hydrogen ion (proton), which are
normal constituents in environmental systems and have no relevant
ecotoxic properties in low concentrations.
Therefore a read-across between disodium adipate and adipic acid is
justified
Several screening tests on biodegradation in water are available resulting in ready biodegradability of the substance.
In a test on ready biodegradability of adipic acid conducted according to the OECD guideline 301 D (Determination of the Ready biodegradability: Closed Bottle Test) 83 % degradation was observed after 30 days. Although, no information on the 10-day window criterion is given, and more than 70% of the test substance has been degraded indicating a potential for complete ultimate biodegradation, it is considered that the criteria for ready biodegradability are fulfilled. Based on this result the substance should be classified as readily biodegradable. The result is supported by an aerobic ready test, performed according to the national Japanese standard method comparable to the OECD TG 301 C guideline. After a period of 14 days more than 90% degradation of adipic acid was observed.
The inherent biodegradability of adipic acid was assessed according to the EU Method C.9 (Biodegradation: Zahn-Wellens Test), showing more than 90% degradation after 5 days. Based on these results the subtsance is considered to be inherently biodegradable.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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