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Diss Factsheets
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EC number: 914-103-1 | 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
With high probability not acutely harmful to algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 2 700 mg/L
- EC10 or NOEC for marine water algae:
- 0.471 mg/L
Additional information
Studies on the acute toxicity of the reaction mass of ammonium sulphate and potassium sulfate and sodium sulphate are not available. However, nitrogen, potassium and sodium are essential elements for organisms and their uptake is actively regulated by the organisms. Ammonium might be assimilated by aquatic plants as a nitrogen source. Thus, an inhibition of algal growth by ammonium, potassium or sodium is not expected. The available data for ammonium sulphate and sodium sulphate support this assumption. In a static test running for 18 days the growth of Chlorella vulgaris was inhibited by 50% at approx. 2700 mg/L ammonium sulphate (Tam and Wong, 1996, cited in OECD SIDS, 2007). However, another study (Thomas et al., 1980, cited in OECD SIDS 2007) has demonstrated that marine phytoplankton is more sensitive to ammonium sulphate than freshwater species. The most sensitive species tested were the dinoflagellates, Gymnodinium splendens and Gonyaulax polyedra, both exhibiting a NOEC growth (17 d) of 0.471 mg/L. Despite these low NOEC values, the high solubility, rapid dissociation and lack of bioaccumulation of ammonium sulphate mean it is unlikely to be harmful to any aquatic algal species. The toxicity of sodium sulphate was tested using the diatom Nitscheria linearis as test organism. The test was terminated after 120 hours and an EC50 of 1900 mg/L based on the growth rate was determined (Patrick et al., 1968, cited in OECD SIDS, 2005).
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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