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EC number: 273-749-6 | CAS number: 69012-50-6 Product of blowing smelted nickel ore in a converter to lower the iron content.
- 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
Description of key information
Additional information
Bioaccumulation and secondary poisoning: the assessment of the bioaccumulation and secondary poisoning potential of nickel matte is not relevant. Accumulation data (BCF and BAF values) are available for relevant metal constituents of this UVCB. Metals like Cu are essential and well regulated in all living organisms and therefore the bioaccumulation criterion is not applicable. While some metals do not magnify in aquatic and terrestrial systems, for other metals secondary poisoning is to be considered relevant based on their known bioaccumulation potential.
According to the CLP Guidance for complex substances (section III 3.2) it is not recommended to estimate an average or weighted BCF value but identify one or more constituents for further consideration. Therefore, secondary poisoning of some constituents contained in the UVCB was further taken into account in the environmental exposure assessment.
The studies on aquatic bioaccumulation are summarised in the following table:
Studies on aquatic bioaccumulation on UVCB
Method |
Results |
Remarks |
Reference |
microphytes and algae (designated as algae), annelids, arthropods (other than insects), insects, mollusks, salmons, centrarchids, cyprinids, sticklebacks, killifish, and other fish species aqueous Total uptake duration: > 14 d Literature review of existing bioaccumulation and bioconcentration data. Exposure (exposure duration was at least 28 d for fish and 14 d for invertebrates and plants or shorter periods if equilibrium had been demonstrated) and whole-body metal levels measured by accepted analytical techniques and an assessment of exposure in the context of guidelines associated with standard BCF test methodologies. |
See summary of results below
|
1 (reliable without restriction) supporting study Test material (common name): zinc, copper, nickel, cadmium, lead, silver, mercury |
McGeer JC, Brix KV, Skeaff JM, DeForest DK, Brigham SI, Adams WJ, Green A (2003) |
Results: The accumulation of Zn, Cd, Cu, Pb, Ni, and Ag in aquatic biota were, in general, remarkably consistent, particularly for Zn, where total body/tissue concentration varied little over a wide range of exposure concentrations, exposure conditions, and species. However, mean BCF values for the six metals were characterized by high variability, and there was an inverse relationship between BCF and exposure concentration. BCF values for individual metal components are reported inTable69.
Bioaccumulation is a characteristic of the metals examined, but the BCF parameter does not characterize this bioaccumulation nor is it related to the potential for toxic impacts. This conclusion has a theoretical, chemical, physiological, and pragmatic basis. The BCF model was designed, developed, and adapted to describe neutral and lipid-soluble organic substances of anthropogenic origin, and its application to metals for the purposes of hazard identification is not supported by the scientific data.
This is not to say that bioaccumulation of metals is unimportant. Understanding and predicting bioaccumulation of metals is one of the key requirements in understanding their fate and toxicity in aquatic environments and for environmental protection measures. However, the BCF criterion does not reflect the current understanding of metal bioaccumulation and cannot predict it.
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