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EC number: 283-041-9 | CAS number: 84539-53-7
- 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
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of EDDHMA-Fe to fish was investigated in carp and rainbow trout. The LC50 for a 96 hour exposure was greater than 1000 mg/L for both species, however from the study with rainbow trout 100% mortality was observed at 10000 mg/L.
Key value for chemical safety assessment
Additional information
- Key study by Bogers, 1992 with carp:
Over a period of 96 hours, the actual concentrations remained constant. Under these conditions, EDDHMA-FeNa did not induce any significant acute effects in carp at the exposure concentration of 1000 mg/L. Hence, the 96h-LC50 for carp exposed to EDDHMA-FeNa was greater than 1000 mg/L, the maximum concentration tested.
- Additional study by Thun, 1990 with rainbow trout:
In the preliminary test, a mortality of 100 % was observed for a concentration of 10 000 mg/l. At 1000 mg/l of EDDHMA Fe K no mortalities were noted. At concentration levels of 100 mg/l and 1000 mg/l, no mortalities were observed. Because of the deep red colour of the test article solutions, an observation of the fish in these test aquaria was not possible. The LC50 is concluded > 1000 mg/L based on measured concentrations, however due to observations on movement of fish being restricted to the lower part of the test vessels and colouration of fins at > 10 mg/L, a NOEC was concluded at 1 mg/L.
- Supporting study by Basf 2010 with zebrafish:
The test substance EDDHA-FeNa was tested at 120 mg/L, which was analytically confirmed. The 96 hour LC50 value for EDDHA-FeNa with the zebrafish (Danio rerio) was greater than 120 mg/L based on the nominal concentration of the test substance and greater than 122 mg/L based on the mean of analytically detemined concentrations. The 96 hour NOEC was determined to be greater than or equal to 120 mg/L.
- The supporting acute toxicity study by Ciba-Geigy (1978) to rainbow trout, carp, catfish and bluegill was performed according to the method reported by Bathe et al. (1974). Various concentrations of EDDHA-FeNa were prepared by adding the test material dissolved in aqua dest. (stock solution), at the appropriate amount ensuring that the total volume in each vessel remained the same. The LC50 for a 96 hour exposure was greater than 100 mg/L for Rainbow trout, Carp, Catfish and Bluegill.
- Additionally, a study investigating the acute toxicity of EDDHMA-Na4 to bluegill is given (Engstrom, 1986) as supporting evidence that these similar chelate structures have no high acute toxicity to fish. In this study the LC50 (96h) proved > 1420 mg/L the highest concentration tested, however some mortality was observed at this concentration.
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