Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (72h) >= 7.9 µg/L
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 7.9 µg/L
Additional information
The influence of the test item on the growth of the freshwater green algal species Pseudokirchneriella subcapitata (formerly Selenastrum capricornutum) was investigated in a 72-hour static test according to the EU Commission Directive 92/69/EEC, C3 (1992) and the OECD Guideline 201 (2006).
Due to the low water solubility of the test item. a dispersion of the test item with the loading rate of 100 mg/L was continuously stirred at room temperature in the dark over 3 hours. Then, the dispersion was filtered through a 0.45 µg membrane filter. The undiluted filtrate and the dilutions 1:2.2, 1:4.6, 1:10 and 1:22 were used as test media. Additionally, a control was tested in parallel.
At the start of the test, the measured concentration of the test item in the analyzed test medium of the highest test concentration (undiluted filtrate) amounted to 8.8 µg/L. At the end of the test, the measured concentration slightly decreased to 7.0 µg/L. The mean measured test item concentration was calculated to be 7.9 µg/L (geometric mean over the measurements at the start and the end of the test).
The biological results were related to the loading rate of 1000 mg/L (mean measured 7.9 µg/l).
The test item had no statistically significant inhibitory effect on the growth (yield and growth rate) of Pseudokirchneriella subcapitata during the test period of 72 hours up to and including the highest loading rate of 100 mg/L (results of Dunnett's tests, one-side, α=0.05). Consequently, the 72-hour NOEC was determined to be at least the loading rate of 100 mg/L or higher, but loading rates above 100 mg/L were not tested in accordance with the EU Commission Directive 92/69/EEC. The 72-hour LOEC was determined to be higher than the loading rate of 100 mg/.
The 72-hour EC10 and EC50 for the algal growth rate (µ) and yield (y) were clearly higher than the loading rate of 100 mg/L. These values could not be quantified, since the test item had no toxic effect on the algae up to the highest test item concentration which could be dissolved in the test water at a loading rate of 100 mg/L.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.