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EC number: 234-796-8 | CAS number: 12033-89-5
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (0-72 h) for Selenastrum capricornutum, based on growth inhibition, was >111 mg/L.
NOEC (0-72 h) for Selenastrum capricornutum was >111 mg/L.
Key value for chemical safety assessment
Additional information
A Selenastrum capricornutum growth inhibition test was performed according to EC guideline C.3 and in accordance with GLP (ARC Seibersdorf research GmbH on behalf of H.C. Starck GmbH, 2005). As the test substance was practically insoluble in culture media, an aqueous extract from a "loading rate" of nominal 111 mg Siilcon Nitride per L nutrient medium and four dilutions of this extract were tested against one negative control (nutrient medium only). The aqueous extract was prepared by stirring of the test substance in medium for about 24 hours and subsequent filtration. There were three replicates for each test and control culture. The cell count of the algae was about 10^4 cells/mL at the start of the exposure in each vessel. Cell density of the algae was determined 24, 48 and 72 hours after the onset of incubation. Possible test substance effects were determined by comparison of the areas under the growth curves and by comparison of the growth rates.
NOEC (0 -72h) >111 mg/L (based on area under growth curves and average growth rates)
EC50 (0 -72h)>111 mg/L (based on area under growth curves and average growth rates)
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