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Diss Factsheets
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EC number: 223-829-1 | CAS number: 4090-51-1
- 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
In a reliable (reliability category 1) toxicity test performed compliant to GLP with analytical monitoring of submission substance concentration no signs of toxicity to the freshwater green alga Scenedesmus subspicatus were observed at the nominal limit concentration of 77 mg submission substance/L (saturated solution). Thus, no EC10 or EC50 could be determined and the NOEC (72 h, growth rate and yield) is larger or equal to 77 mg/L nominal concentration of the submission substance.
Key value for chemical safety assessment
Additional information
Toxicity of the submission substance towards aquatic algae was assessed by means of a limit test performed compliant to GLP in accordance with Commission Directive 92/69/EEC and OECD 201 (1984) (reliability category 1) using the freshwater alga Scenedesmus subspicatus. Due to the very poor solubility of the submission substance in water, the mean measured concentrations in test medium at the nominal limit concentration of 77 mg/L (saturated solution) after filtration through a Whatman GF/C-Filter with a pore size of approximately 1.2 µm were 120 µg/L at test start and 170 µg/L after 72 hours. The slight increase of the measured submission substance concentration might have been caused by fine dispersion of particles during the test period and therefore a higher amount of submission substance that passed the filter. The test material was unevenly distributed in the test media but was continuously stirred during the test period. The mean algal cell densities in the test medium were at all counting dates identical or even slightly higher than in the parallel control cultures. Therefore, the 72-hour NOEC (highest concentration tested without toxic effects after the exposure period of 72 hours), and the 72-hour EC0 of the submission substance to Scenedesmus subspicatus were determined to be at least 77 mg submission substance/L in regard to both, growth rate and biomass.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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