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EC number: 283-042-4 | CAS number: 84539-54-8
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
General consideration
Studies with Fe(3Na)EDDHSA (CAS 84539-54-8 ) are not available for endpoints concerning environmental fate and pathways. Read-across from the closely related substances Fe(Na)EDDHMA (CAS 84539-53-7), Fe(3K)EDDHSA and Fe(Na)EDDHA (CAS 84539 -55 -9) was performed instead. For further details, please refer to the read-across statement attached to the IUCLID file.
Hydrolysis
Based on the structure of Fe(3Na)EDDHSA no hydrolysis is expected as no hydrolysable groups are present. The substance can thus be regarded as hydrolytically stable. This is further supported by its application and use in aqueous solution and also by the fact that the read-across substance Fe(3K)EDDHSA was also found to be stable in water according to EU Method C.7 at pH 4, 7 and 9 (Groult, 2001). The half-life at 25 °C will be greater than 1 year.
Phototransformation in air and water
Abiotic degradation takes predominately place by photolysis as shown in a study with the read across substance Fe(Na)EDDHMA (Notox B.V., 1996). The half-life time for phototransformation of Fe(Na)EDDHMA at 25 +/- 3 °C is determined to be 40.66 and 35.40 hours for the two major compartments of this UVCB substance, at a light intensity of 4.86E20 photons/second in the wavelength range of 290 - 500 nm.
EDDHA/Fe3+ is progressively degraded along a 30 day period when it was exposed to direct sunlight in water (Hernández-Apaolaza and Lucena, 2010). The degradation products (Salicyladehide, salicyclic acid and Salicylaldehydeethylenediamine diimine) did not affect biomass production of soybean plants.
The chelating agent EDDHA is rather stable to photodegradation in air, Fe3+-EDDHA is very persistent for this pathway (Gómez-Gallego et al., 2005).
Biodegradability
Fe(3K)EDDHSA is regarded as not readily biodegradable by attaining 39 % degradation after 28 days in an OECD 301B Guideline experiment (L´Haridon, 2001). Also Fe(Na)EDDHA showed only slow biodegradation under standard conditions. A guideline study accomplished according to OECD 301A detected 10 - 20 % degradation based on DOC removal after an incubation time of 28 days (Schwarz, 2010). Especially the result obtained by L´Haridon indicates that the compound is probably ultimately biodegradable.
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