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Diss Factsheets
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EC number: 939-201-1 | 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
Key value for chemical safety assessment
Additional information
There are 2 studies according to OECD 201 available:
One study considered to be only a supporting study investigated the toxicity of Reaction mass of sodium hydrogen N-(1-oxooctadecyl)-L-glutamate and stearic acid to algae. The study was performed according to GLP and OECD guideline 201 using Desmodesmus subspicatus as test organism (Fresenius, 2004). Nominal concentrations between 62.5 and 1000 mg/L were tested over a period of 72 h. The 72h-EC50 is determined to be 200 mg/L and the 72h-EC10 is determined to be 73 mg/L based on nominal test concentrations.
The second study is considered to be the key study although even this study revealed significant shortcomings:
In a 72-hour algal growth study, cultures of Pseudokirchneriella subcapitata were exposed to Reaction mass of sodium hydrogen N-(1-oxooctadecyl)-l-glutamate and stearic acid at nominal concentrations of 0 (control), 0.15, 0.3, 0.8, 2, and 5 mg/L under static conditions in accordance with the OECD 201 guideline. The water pH, temperature and lighting intensity were all maintained within acceptable guideline specifications. The following statistical effect concentrations were obtained after 72 hours of exposure, based on nominal concentrations.
yield: EC10: 0.73 mg/L, NOEC: 0.3 mg/L
growth rate: EC10: not detectable, NOEC: 0.3 mg/L
Due to the fact, that the concentration of test substance in test media despite all reasonable efforts could not be reasonably verified analytically a change in the test organism and test design was considered to reveal a possible toxicity towards plant organisms.
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