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Diss Factsheets
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EC number: 295-032-7 | CAS number: 91782-60-4
- 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
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Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Relevant and reliable data that could be used for classification for freshwater invertebrates were retrieved for 10 different species. The LC50s ranged from 0.61 mg Co/L for the cladoceran, Ceriodaphnia dubia to 7219 mg Co/L for Brachycentrys americansus. Relevant and reliable data that could be used for classification for marine invertebrates were retrieved for 4 different species. The LC50s ranged from 2.32 mg Co/L for the sand dollar, Dendraster excentricus to 3.70 mg Co/L for the pacific oyster, Crassostrea sp. Test results were obtained in experiments that followed international accepted guidance and were based on measured levels of dissolved cobalt as cobalt chloride.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- LC50
- Effect concentration:
- 0.61 mg/L
Marine water invertebrates
Marine water invertebrates
- Dose descriptor:
- LC50
- Effect concentration:
- 2.32 mg/L
Additional information
Freshwater:
From the database of acute cobalt toxicity to freshwater invertebrates, 41 individual LC50 values for 10 different individual species were reported. The LC50s ranged from 0.61mg Co/Lfor the cladoceran, Ceriodaphnia dubia tested in soft, dissolved organic matter-free water (CDI, 2005) to 7219 mg Co/L for the midge, Brachycentrus americansus (Pacific EcoRisk, 2005). No freshwater acute invertebrate toxicity studies were used to derive the HC5 and freshwater PNEC.
Marine:
From the database of acute cobalt toxicity to marine invertebrates, 4 LC50 values are reported for 4 species. The values range from 2.32 mg Co/L for the sand dollar, Dendraster excentricus (CDI 2010c) to 2.62 for Mytilus sp. (CDI 2010a), to 2.83 for Stronglyocentrotus purpuratus (CDI 2010d)and 3.70 mg Co/L for the pacific oyster, Crassostrea sp.(CDI 2010b).
No short-term marine aquatic invertebrate tests are used in the marine PNEC derivation.
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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