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Diss Factsheets
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EC number: 443-940-0 | 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
The 72 h EbC50 and ErC50 of the test substance were 24 and >50<100 mg/L respectively. The NOEC and LOEC values of the test substance were determined to be 6.3 and 13 mg/L respectively.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 24 mg/L
- EC10 or NOEC for freshwater algae:
- 6.3 mg/L
Additional information
A study was performed to assess the adverse effects of test substance on the growth and growth rate of the planktonic freshwater algal speciesDesmodesmus subspicatusover several generations. The study was conducted in accordance with EU Method C.3., OECD Guideline 201 and an instruction for the performance of a modified algal growth inhibition test published by Memmert & Knoell.
Exponentially growing algal cells were exposed for a period of 72 h to a limit test concentration of nominally 6.3, 13, 25, 50 and 100 mg/L of test substance dissolved in water(Part I).A second series (Part II) of test vessels treated in the same way as the controls, but placed below glass vessels containing the same range of concentrations of the test substance as described above, but without algae, was set up to
distinguish between algistatic (indirect effect caused by light absorption) and algicide (toxic) effects.
The cell densities were measured at 24 h intervals. Inhibition of the algal population was measured as reduction in growth (index b) and growth rate (index r), relative to control.
All results are expressed in terms of nominal concentrations. Measured concentrations ranged from 101.8-103.8 and 102.4-112.6% of nominal values at 0 and 72 h respectively.
The 72 h EbC50 and ErC50 of the test substance were 24 and >50<100 mg/L respectively. The NOEC and LOEC values of the test substance were determined to be 6.3 and 13 mg/L respectively (Dr. Bruns, 2002).
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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