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EC number: 432-770-2 | CAS number: 139189-30-3
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of the test material to the freshwater invertebrate Daphnia magna has been investigated and gave a 48 hour EC50 of greater than 0.80 mg/l. Correspondingly the No Observed Effect Concentration was 0.80 mg/l.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 0.8 mg/L
Additional information
Preliminary solubility work and analysis showed that at a test concentration of 0.80 mg/l a proportion of the test material remained undissolved. Therefore analysis was performed on samples of filtered and unfiltered test media during the definitive study. The filtered samples indicated the concentration of test material in solution and hence bioavailable to the test organisms.
Analysis of the unfiltered media showed measured values of 72% and 67% of nominal at 0 hours and 82% and 80% at 48 hours. The low results shown for the 0 hour test samples were considered to be due to the problems associated with sampling and analysis of dispersions at low test concnetrations in a complex biological system, such as adsorption to the test organisms and their waste. Analysis of frozen duplicate samples showed lower measured values from those originally obtained. This was considered to be due to losses during storage and thawing prior to analysis. Analysis of the filtered test media showed measured test concentrations of 3% of nominal at 0 hours and 6% of nominal at 48 hours.
The results shown from analysis of the unfiltered media indicate both the amount of dispersed and dissolved test material in the system, whereas the measured values from the filtered media indicate the amount of dissolved test material which was bioavailable to the test organisms. It was therefore considered appropriate to base the results on the time-weighted mean measured test concentrations of the filtered test media in order to give a worse case analysis of the data.
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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