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EC number: 824-774-1 | CAS number: 148124-40-7
- 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
The ecotoxicity of EDTA-FeK/EDTA-FeNa are considered to be similar to the ecotoxicity of EDTA-Fe(OH)K2 as these substances will be tested in very diluted form in buffered matrices and under these conditions no significant effects of the additional OH or the difference between sodium and potassium are expected. The ecotoxicity test results as observed for EDTA-FeK/ EDTA-FeNa will therefore be read across to EDTA-Fe(OH)K2.
The key study for the terrestrial hazard assessment is the study where acute effects of EDTA-FeNa on the earthworm Eisenia fetida were determined according to OECD Guideline 207.
In this study the LC50 for mortaility was observed to be 133 (70.1 - 262) mg/kg dw and the EC50 for body weight was 129 (88.3 - 185) mg/kg dw. As a worst-case these values observed for EDTA-FeNa were not be corrected for the MW difference.
Additional information
The ecotoxicity of EDTA-FeK/EDTA-FeNa are considered to be similar to the ecotoxicity of EDTA-Fe(OH)K2 as these substances will be tested in very diluted form in buffered matrices and under these conditions no significant effects of the additional OH or the difference between sodium and potassium are expected. The ecotoxicity test results as observed for EDTA-FeK/ EDTA-FeNa will therefore be read across to EDTA-Fe(OH)K2.
The key study for the terrestrial hazard assessment is the study where acute effects of EDTA-FeNa on the earthworm Eisenia fetida were determined according to OECD Guideline 207.
In this study the LC50 for mortaility was observed to be 133 (70.1 - 262) mg/kg dw and the EC50 for body weight was 129 (88.3 - 185) mg/kg dw. As a worst-case these values observed for EDTA-FeNa were not be corrected for the MW difference.
Only one additional acute toxicity study with earthworms is available for EDTA-H4 (Edwards, 2009). The EC50 was determined at 156 mg/kg soil dry weight.
Two acceptable studies with EDTA salts or complexes have been performed, examining different end-points (vegetative vigour and seedling emergence) in different plant species. In the 21d veg vigour study (Evangelou et al., 2006) a true NOEC could be established, while in the 14d seedling emergence test (Geebelen et al., 2002) no effect was observed at the highest tested dose (> 58.4 mg/kg soil dw H4-EDTA).
Recalculation of the NOEC from EDTA-Na2H2 to EDTA-FeK will give a NOEC of 95.7 mg/kg soil dw.
Additionally two FeNa-EDTA studies with birds are available. Low toxicity to bobwhite quail has been found in both studies (>5000 mg/kg bw or mg/kg food), corresponding to 5220 mg/kg food for EDTA-FeK.
The hazard assessment of EDTA-FeK reveals neither a need to classify the substance as dangerous to the environment, nor is it a PBT or vPvB substance. The substance is expected to have a low potential for adsorption based on its ionic structure under environmental relevant pH conditions and its low log Kow , the low log Kow also indicates that the substance will not be bioaccumulative. There are no further indications that the substance may be hazardous to the environment.
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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