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EC number: 231-106-7 | CAS number: 7439-97-6
- 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
Chronic toxicity of inorganic mercury, tested as HgCl2 in freshwater sediment, to Chironomus riparius, was determined during a 28d test. The long-term sediment toxicity study was conducted in the framework of the Eurochlor mercury risk assessment.
Key value for chemical safety assessment
- EC10, LC10 or NOEC for freshwater sediment:
- 930 mg/kg sediment dw
- EC10, LC10 or NOEC for marine water sediment:
- 930 mg/kg sediment dw
Additional information
Sediment data was retrieved from the freshwater data set. A PNEC can be extrapolated by assigning a safety factor to the lowest available chronic NOEC determined in the test.
Thompson et al, 1998
The chronic toxicity of inorganic mercury tested as HgCl2 in sediment toChironomus ripariusin a 28 day test was determined. In this test the time to first emergence, time to 50% emergence and percentage emergence of larvae (< 24h post hatch) after 28 days were tested and gave aNOEC of 1000 mg Hg/kgdry weight (nominal), corresponding to 930 mg Hg/kg dry weight (measured). Toxic effects were only observed at the highest tested concentration (1800 mg/kg dw nominal, corresponding to 1,600 mg/kg dw measured) with only 5% of the larvae emerging as adults, compared with 98% in the control. At this sediment concentration the concentration in the overlying water at the start was approximately 6mg/l of total mercury, while at the end all concentrations were below 1mg/l. This is consistent with the aquatic toxicity data found in literature where long term NOEC’s were found around 1mg/l and shorter term EC50values of higher than 1mg/l. |
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