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Diss Factsheets
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EC number: 215-721-8 | CAS number: 1345-25-1
- 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 aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- GLP guideline study. Iron(II)Oxide belongs to the iron oxides family and presents comparable physico chemical properties, leading to similar behaviour for the all members of the iron oxide substances. In particular, based on affinity of the chemical structure, Iron Oxide (Fe3O4) and Iron(III)Oxide (Fe2O3) are selected to support read across for the Iron(II)Oxide dossier. Full justification paper is provided in the current Summary Section.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.2 (Acute Toxicity for Daphnia)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Triiron tetraoxide
- EC Number:
- 215-277-5
- EC Name:
- Triiron tetraoxide
- Cas Number:
- 1317-61-9
- Molecular formula:
- Fe3O4
- IUPAC Name:
- Magnetite
- Details on test material:
- Bayferrox 350 liquid
ca. 50 % Iron oxide black (pigment) in aqueous suspension
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Details on test solutions:
- PREPARATION of STOCK SOLUTION
- 10000 mg/l of the test substance was directly weighed into water, treated for 60 seconds at 8000 rpm with an ultra turrax and stirred for 24 hours on a magnetic stirrer. To remove undissolved particles, the resulting emulsion was filtered using a folded filter of the pore size 7-12 µm.
DILUTION WATER
- Holding water: M4-Medium according to Elendt and BGA (1992)
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- - Females
- Source/supplier: cloned at the Federal Health Office (BGA) in Berlin
- Breeding method: Laboratory bred by parthenogenesis at Bayer AG Leverkusen
- Age: 0 - 24 hours
- Feeding during test: None
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 14.6 °dH
- Test temperature:
- 20.1 - 20.5 °C
- pH:
- 7.8
- Dissolved oxygen:
- 8.3 - 8.8 mg/l
- Details on test conditions:
- Holding water: M4-Medium according to Elendt and BGA (1992)
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- other: EL0 (= Effective Loading)
- Effect conc.:
- >= 10 000 mg/L
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
Any other information on results incl. tables
Considering the heterogeneous composition of the test substance, a Water Accommodated Fraction (WAF) of Bayferrox 350 liquid was tested
Applicant's summary and conclusion
- Executive summary:
For triiron tetraoxide a 48-hour EL0 (effective loading) of >= 10000 mg/l (nominal concentration) was observed on Daphnia magna. The method used was EU Method C.2 (Acute Toxicity for Daphnia), (Bayer AG 2000).
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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