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EC number: 268-040-3 | CAS number: 67990-17-4
- 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
The 72 hour EC50 and ErC10 of the test item on Raphidocelis subcapitata is >100 mg/L. The 72 hours NOEC is 100 mg/L and the Lowest observed effect concentration (LOEC) is >100 mg/L.
Using ECOSAR v1.11 the acute EC50 value for algae was calculated to be 6475.286 mg/L. The chronic toxicity for algae was calculated to be 1250.872 mg/L. The substance is within the applicability domain of the model.
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 100 mg/L
Additional information
The test item was assessed on Raphidocelis subcapitata for Growth Inhibition Test as per the OECD Guidelines for Testing of Chemicals Guideline No. 201. A range finding study was conducted with six concentrations of 0.1, 1.0, 10.0 and 100.0 mg/L along with control. The algal growth (cell density) was assessed at 24, 48 and 72 hours of post-exposure during the test. During the range finding study, exponentially growing cells were exposed to range of selected concentrations. Based on the results of range finding study, a limit test was conducted at the concentration of 100 mg/L along with control (each 6 replicates). The algal growth (cell density) was assessed at 24, 48 and 72 hours post-exposure. Exponentially growing alga cells were exposed to the limit concentration. The present alga growth inhibition study fulfills the validity criteria of the test. The test samples were analyzed for test item concentration at the start (0 hours) and for stability at the end of the treatment (72 hours) both during range finding study and limit test, and were found to be within the acceptable range of ± 20% recovery to the nominal concentrations. Therefore, the results are based on the nominal concentrations. From the experiment conducted under standard experimental conditions, the 72 hour ErC50 and ErC10 (growth rate) and EyC50 and EyC10 (yield) of the test item on Raphidocelis subcapitata is >100 mg/L. The 72 hours No Observed Effect Concentration (NOEC) is 100 mg/L and the Lowest observed effect concentration (LOEC) is >100 mg/L.
The toxicity to aquatic algae of the test substance was calculated using ECOSAR v.1.11 as part of EPISuite v4.11 from US Environmental Protection Agency. Using ECOSAR v1.11 the acute EC50 value for algae was calculated to be 6475.286 mg/L. The chronic toxicity for algae was calculated to be 1250.872 mg/L. The substance is within the applicability domain of the model.
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