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EC number: 245-119-0 | CAS number: 22605-92-1
- 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
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Toxicity to birds
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (90 d) = 630 mg Trinickel Dicitrate/kg diet
Key value for chemical safety assessment
Additional information
Six sub-chronic and chronic feeding studies in which the diet was spiked with a Ni salt were identified in the EU-RAR (2008, seeTable 3.2.4-2 in the attached document of the key endpoint study record of chapter 6.3.5). The most sensitive lowest observed effect concentration (LOEC) from these six studies, focusing on endpoints related to survival, growth, and reproduction, was 300 mg/kg (as added Ni) based on a 21-day study with White Plymouth Rock day-old male chicks. This LOEC is based on a 14% reduction in body weight relative to the control chicks. A NOEC of 150 mg/kg was estimated by Waegeneers and Smolders (2003) by dividing the LOEC by 2 as per TGD guidance.
In a further study Cain and Pafford (1981) observed tremors in all ducklings fed a dietary Ni concentration of 800 mg/kg or greater. Although all but two ducklings in the 800 mg/kg dietary treatment survived throughout the 90-day exposure period, all ducklings continued to tremor throughout the experimental period of 90 days. At a dietary Ni concentration of 200 mg/kg, all ducklings survived and none developed tremors. So the study of Cain and Pafford (1981) resulted in a NOEC of 200 mg Ni/kg. More confidence is placed in the NOEC of Cain and Pafford (1981) than that of Ling and Leach (1979) because the former was a measured NOEC from a longer study. Nevertheless, both the mallard and chicken NOECs of 200 and 150 mg Ni/kg (according to 630 and 472 mg Trinickel Dicitrate/kg), respectively, are used to derive the PNECs in the first tier of the risk characterization given in the EU-RAR.
Further tiered approach was developed and applied for the terrestrial food chain. The default approach suggested by the European Union’s Technical Guidance Document was always used as the first tier. If potential risk was concluded from this tier, then in subsequent assessment tiers, refinements on absorption of dietary nickel and the dietary composition of the predators were considered.
Remark:
[citric acid, nickel salt] is present on the surface of an inert carrier material (aluminium oxide). Depending on the pH value to prepare the impregnation solution or present while impregnation different molar ratios between nickel and citric acid are possible.
For this reason the concentrations of the single Nickel constituents of [citric acid, nickel salt] are various. The calculated values refer to the constituent Trinickel dicitrate and have to seen as a lower threshold value.
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