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Diss Factsheets
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EC number: 269-060-5 | CAS number: 68186-97-0 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77502.
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
The pigment iron cobalt chromite black spinel is environmentally and biologically inert due to the characteristics of the synthetic process (calcination at high temperatures, approximately 1000°C), rendering the substance to be of a unique, stable crystalline structure in which all atoms are tightly bound and not prone to dissolution in environmental and physiological media. The substance can be expected to not have a potential to cross or adsorb to biological membranes. Therefore, reversible or irreversible adverse toxicological effects on aquatic or terrestrial life-forms are not expected, and a PNEC derivation is scientifically not justifiable.
The lack of an ecotoxic potential was demonstrated in an OECD TG 201 test. There were not any loading-dependent inhibiting effects on the growth of Pseudokirchneriella subcapitata at 100 mg/L. There was a certain stimulation of cell growth compared to the controls, possibly due to the introduced trace metals, i.e. nutrients. The EL50 for inhibition of growth rate and yield were estimated to be > 100 mg/L. The NOEL for growth rate and yield amounts to ≥ 100 mgL.These data indicate that the pigment may not be toxic to the trophic level of algae/aquatic plants.
Conclusion on classification
The lack of an ecotoxic potential due to the inertness of iron cobalt chromite black spinel was demonstrated in an algae growth inhibition test (OECD TG 201). The EL50 for inhibition of growth rate and yield were estimated to be > 100 mg/L. The NOEL for growth rate and yield amounts to ≥ 100 mg/L. Further ecotoxicity validation testing is ongoing. Classification should be examined once the data will be generated.
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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