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EC number: 947-057-6 | 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
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Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
OECD guideline 201, GLP, key study, validity 2:
Algal growth inhibition: NOEC= 100 mg/L
ECr50 (72h) ≥100 mg/L
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 100 mg/L
Additional information
In an algal growth inhibition study performed according to OECD Guideline 201/ EU method C.3 and in compliance with GLP,Scenedesmus subspicatus(CCAP 276/20)was exposed to an aqueous dispersion of the test material at a concentration of 100 mg/L (six replicate flasks) for 72 hours, under constant illumination and shaking at a temperature of 24 ± 1 °C.Samples of the algal populations were removed daily and cell concentrations determined for each control and treatment group, using a haemocytometer and light microscope.
All test and control cultures were inspected microscopically at 72 hours. There were no abnormalities detected in any of the control or test cultures. At the start of the test all control cultures were observed to be clear colourless solutions whilst all the test cultures were observed to be very slightly cloudy white homogenous dispersions. After the 72 hour test period all control cultures were observed to be pale green dispersions whilst the test cultures were observed to be green dispersions with a slight foam at the media surface.
Mean cell density of control at 0 hours: 1.06 X 104cells per ml
Mean cell density of control at 72 hours: 7.73 x 105cells per ml
Neither the growth (r) or the biomass (b) ofScenedesmus subspicatuswere affected by the presence of the test material over the 72-hour exposure period.Exposure ofScenedesmus subspicatusto the test material gaveEbC50(72 h): > 100 mg/L; ErC50(0 - 72 h): > 100 mg/Land correspondingly the No Observed Effect Concentration was 100 mg/L.
It was considered unnecessary and unrealistic to test at concentrations in excess of 100 mg/L.
Under the test conditions, the 72 -hourErC50was > 100 mg/Land the NOEC was100 mg/L.
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