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EC number: 292-124-9 | CAS number: 90552-04-8
- 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
ErL10 (72h): >100 mg/L
NOErL (72h): >=100 mg/L
Key value for chemical safety assessment
Additional information
In a 72-hour algal growth study, cultures of Raphidocelis subcapitata were exposed to 2-Propenoic acid, 2-methyl-, C13-15-branched and linear alkyl esters at loading rates of 0 (control), and 100 mg/L under static conditions in accordance with the OECD 201 guideline. The water pH(a), temperature and lighting intensity were all maintained within acceptable guideline specifications.
The following effect concentrations (mg/L) were obtained after 72-h based on loading rate:
Algal Yield [mg/L] | Algal Growth Rate [mg/L] | ||
EyL10 confidence limits 95%: | >100 - | ErL10 confidence limits 95%: | >100 - |
EyL20 confidence limits 95%: | >100 - | ErL20 confidence limits 95%: | >100 - |
EyL50 confidence limits 95%: | >100 - | ErL50 confidence limits 95%: | >100 - |
NOEyL | >=100 | NOErL | >=100
|
LOEyL | >100
| LOErL | >100 |
The test organisms were exposed to saturated solutions of the test substance in test media prepared at nominal loading rates of up to 100 mg/L in this study. The exposure was started after separation of the undissolved test substance.
The test substance had no observable inhibitory effect on Raphidocelis subcapitata growth up to its saturation limit in test media and under test conditions. The test substance is a mixture that is poorly soluble in water. Therefore the test solutions were prepared following general guidance provided in OECD 23 in order to achieve a water accommodated fractions (WAFs) of the test substance. The aqueous fraction of the test solution, after separation of the undissolved material, is a WAF and is considered analogous to nominal concentration (OECD 23).
The concentration of test substance in test media could not be verified analytically, therefore the effect concentrations are based on the loading rate used to prepare the test substance WAF solutions. According to guidance in OECD 23, for tests with chemicals that cannot be quantified by analytical methods at the concentrations causing effects, the effect concentration can be expressed based on the nominal concentrations or in the case of water accommodated fractions on the loading rate. The results in this study are consistent with all validity criteria and the test is valid according to the guidelines of this study.
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