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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
Phototransformation in water
Administrative data
Link to relevant study record(s)
Description of key information
Based on the absence of data for disodium adipate, results from the corresponding acid are taken into account for this endpoint. A liquid phase kinetic study on the ozonolysis and on the UV-induced ozonolysis of selected dicarboxylic acids, including adipic acid was performed, resulting in an ozone-dependent life time of about 13,000 years.
Key value for chemical safety assessment
Additional information
For disodium adipate no data are available and a read-across approach with adipic acid is applied. 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.
The ozonolysis of several dicarboxylic acids including adipic acid was measured in liquid phase to elucidate the fate of these acids in aerosols. In one series of experiments, ozone was produced in an ozone generator, in another series it was produced in the liquid phase by UV irradiation. Adipic acid concentrations ranged from 0.001 to 0.1 mol/l. Kinetics were determined by measuring ozone decay and carboxylic acid decay. The measured ozonolysis rate constant (k) for the adipic acid in 0.1 mol/l aqueous solutions was 1.7x10-3 L mol-1 s-1. The photoassisted ozonolysis rate constant was 2.8x10-3 L mol-1 s-1. The results indicate that ozonolysis and photoassisted ozonolysis are no significant removal pathways for adipic acid. The authors estimated the ozone-dependent life-time of adipic acid in air to be about 13,000 years, assuming an ozone mixing ratio of 100 ppbv, which is an upper limit for its summer time mid-latitude continental northern hemisphere values. For ozonolysis related conversion times are expected (Nepotchatykh, 2002).
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