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EC number: 947-515-5 | CAS number: -
- 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
PNEC for bethic organisms can be calculated applying the equilibrium partitioning method using a Kpsed or Kdsed of 4526 L/kg (or Koc of 90520 L/kg) this leads to a PNEC of 0.171 mg/kd dw including the additional correction factor of 10 for additional exposure via ingestion.
Two valid long-term test have been performed. One with Lumbriculus variegatus, an endobenthic worm, and resulted in an EC10 of 84.6 mg/kg dw and one with Caenorhabditis elegans which resulted in an EC10 of 219 mg/kg dw. From this endpoint a PNEC of 1.692 mg/kg dw can be calculated applying an assessment factor of 50. As the test substance is an ionic substance the reliability of the actual test is considered to be higher than the reliability of the EPM based PNEC.
Key value for chemical safety assessment
- EC10, LC10 or NOEC for freshwater sediment:
- 84.6 mg/kg sediment dw
Additional information
PNEC sediment based on EPM
In the absence of measured data the PNECsed can be provisionally calculated using the equilibrium partitioning method (EPM). According to the TGD this method uses the PNECaquatic and the sediment/water partitioning coefficient as inputs. However, since the available PNECaquatic is based on the bulk concentration present in surface water a re-calculation is necessary first:
PNECaquatic, dissolved = PNECaquatic bulk/ (1 + Kpsusp* SUSPwater* 10-6)
Where:
PNECaquatic bulk = 0.214 µg/L
Kpsusp = 9052 L/kg
SUSPwater = 15 mg/L(EU TGD, 2003)
The PNECsedis then calculated using the equations detailed in the TGD (2003):
PNECsed = Ksusp-water* PNECaquatic dissolved* 1000 * 1 / RHOsusp
Where:
PNECaquatic dissolved = 0.188µg/L
Ksusp-water = 2264 m3/m3
RHOsusp = 1150 kg/m3(TGD, equ. 18)
PNECsed-EPM = 0.372 mg/kg ww = 1.71 mg/kg dw without correction for additional exposure via ingestion
PNECsed-EPM = 0.0372 mg/kg ww = 0.171 mg/kg dw with correction for additional exposure via ingestion
Two valid long-term test have been performed. One with Lumbriculus variegatus, an endobenthic worm, and resulted in an EC10 of 84.6 mg/kg dw and one with Caenorhabditis elegans which resulted in an EC10 of 219 mg/kg dw. From this endpoint a PNEC of 1.692 mg/kg dw can be calculated applying an assessment factor of 50. As the test substance is an ionic substance the reliability of the actual test is considered to be higher than the reliability of the EPM based PNEC.
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