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EC number: 266-005-7 | CAS number: 65996-72-7 The dust generated during the charging, operation, and tapping of a steelmaking furnace and from steel conditioning, including that which is recovered through the use of pollution abatement equipment. Composed primarily of iron oxides. May contain varying amounts of other metallic oxides and trace compounds.
- 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
Key value for chemical safety assessment
Additional information
Under the above-described experimental design, the test substance Dust, steelmaking was non-mutagenic for all the Salmonella typhimurium as well as Escherichia coli strains both in experiments without as well as with metabolic activation.
During the described in vitro chromosomal aberration test and under reported experimental conditions, the test item Dust, steelmaking, did not induce structural chromosomal aberrations in the V79 Chinese hamster cell line. The test item Dust, steelmaking, is considered to be non-clastogenic in this chromosome aberration test.
Due to results of the In vitro Mammalian Cell Gene Mutation Assay the test item Dust, steelmaking is considered to be equivocal in the mouse lymphoma thymidine kinase locus using the cell line L5178Y.
Both bacterial reverse mutation test and chromosome aberration assay gave to negative results. Result of the In vitro Mammalian Cell Gene Mutation Assay was inconclusive. The test item may be rated as non-mutagenic.
Short description of key information:
Test substance Dust, steelmaking was assayed for the mutagenicity by the Bacterial Reverse Mutation Test. The test was performed according to EU method B.13/14 Mutagenicity - Reverse mutation test using bacteria, which is analogous to the OECD Test Guideline No. 471.
To investigate the potential of Dust, steelmaking to induce structural chromosome aberrations in Chinese hamster V79 cells, an in vitro chromosome aberration assay was carried out. The test was performed according to OECD Guideline 473 (In vitro Mammalian Chromosome Aberration Test).
The test item Dust, steelmaking was assessed for its potential to induce mutations at the mouse lymphoma thymidine kinase locus using the cell line L5178Y. The test was performed according to OECD Guideline for Testing of Chemicals, No. 476, "In vitro Mammalian Cell Gene Mutation Tests".
All the above mentioned tests were practised in accordance with GLP.
Endpoint Conclusion: No adverse effect observed (negative)
Justification for classification or non-classification
Both bacterial reverse mutation test and chromosome aberration assay gave to negative results. Result of the In vitro Mammalian Cell Gene Mutation Assay was inconclusive. The test item may be rated as non-mutagenic.
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