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EC number: 241-769-4 | CAS number: 17791-81-0
- 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 plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
Based on a test according to OECD guideline 221 performed with Lemna gibba, the following key values were determined based on frond number after an exposure period of 7 days: ErC50 > 352 mg/L and ErC10 = 52.4 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater plants:
- 352 mg/L
- EC10 or NOEC for freshwater plants:
- 52.4 mg/L
Additional information
The effects of test item on the growth of the monocotyledon species Lemna gibba was determined according to the principles of OECD 221 under GLP conditions. Each test concentration was freshly prepared with dilution water from a stock solution of 400 mg/L. The tested solutions were visually clear throughout the exposure. A semi-static exposure over 7 days was carried out. Based on a preliminary test, 5 nominal test item concentration levels were tested in a geometrical series with a dilution factor of 2.5: 10.2 - 25.6 -64 - 160 - 400 mg test item/L. Corrected for purity, the test concentrations were 8.98 - 22.5 - 56.3 - 141 - 352 mg/L. Three replicates were investigated for each test concentration and six for the control. Frond numbers were assessed on days 0, 3, 5 and 7. Environmental parameters (light, pH and temperature) were within the acceptable limits. The validity criteria of the test guideline were fulfilled. The concentrations of the test item and the control were analysed via spectrophotometric analysis at the beginning and end of the exposure and at every renewal day. Freshly prepared and old media were analysed. The measured concentrations of the test item in the fresh and old test media were in the range of 89 to 95 % and 92 to 103 % of the nominal values, respectively. All effect values are given below based on nominal test item concentration, corrected for purity.
Based on frond number (after 7 days):
NOEC (growth rate): 56.3 mg/L
LOEC (growth rate): 141 mg/L
ErC50: > 352 mg/L
ErC20: > 352 mg/L
ErC10: 52.4 mg/L (95% confidence limits 25.5 - 103)
NOEC (Yield): 56.3 mg/L
LOEC (Yield): 141 mg/L
EyC50: > 352 mg/L
EyC20: 65.4 mg/L (95% confidence limits < 8.98 – 140)
EyC10: < 8.98 mg/L
Based on dry weight (after 7 days):
NOEC (growth rate): < 8.98 mg/L
LOEC (growth rate): 8.98 mg/L
ErC50: > 352 mg/L
ErC20: 32.8 mg/L (21.8 - 45.8)
ErC10: < 8.98 mg/L
NOEC (Yield): < 8.98 mg/L
LOEC (Yield): 8.98 mg/L
EyC50: 58.1 (95% confidence limits 40.0 - 84.9)
EyC20: < 8.98 mg/L
EyC10: < 8.98 mg/L
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