Registration Dossier
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EC number: 231-131-3 | CAS number: 7440-22-4
- 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

Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
The most sensitive endpoint is a 10-day NOEC (growth) for Hyalella azteca of 12 mg Ag/kg dry weight (Call et al. 2006).
Key value for chemical safety assessment
Additional information
Long-term NOECs are available for three benthic species:Chironomus tentans (Call et al. 1999), Hyalella azteca (Hirsch 1998a, Call et al. 2006) and Lumbriculus variegatus (Hirsch 1998b). The most sensitive reported sediment NOEC is 12 mg Ag/kg dry sediment for growth of the amphipod Hyalella azteca exposed after a 10 day exposure to contaminated sediments (Call et al. 2006). The organic carbon content of the sediment used to generate this NOEC was 0.29%.
The derivation of the PNECsediment, including the basis for a correction for sediment organic carbon concentration is described in the appended PNEC summary document.
Berry et al. (1999) exposed the marine amphipod Ampelisca abdita for 10 days to two marine sediments with different amounts of acid-volatile sulfide spiked with silver (Sediment 1: 2.7 – 4415 mg silver/kg dw, Sediment 2: 2.7 – 72,770 mg silver/kg dw). The EC10 values for these two sediments were 4415 and 6626 mg/kg, respectively. In general, sediment treatments with an excess of acid-volatile sulfide (AVS) relative to simultaneously extracted metal were not toxic to marine amphipods.
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