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EC number: 247-269-2 | CAS number: 25797-81-3
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Name: FAT 20033/L
Batch number: AT-PD13-359A1
EAS Test item code: 2014-000179
Appearance / colour: solid / dark blue
Molecular weight 544.58 g/mol (base) 567.57 g/mol (salt)
Date of analysis: 07 Jan 2014
Expiry date: 07 Jan 2019
Storage conditions: ambient (+5 to +30 °C), dark, dry - Analytical monitoring:
- yes
- Details on sampling:
- After sampling, the test medium samples (0.5 mL) were mixed with 0.5 mL methanol and stored deep-frozen (below -18 °C) until analysis.
- Vehicle:
- no
- Details on test solutions:
- The necessary amount of FAT 20033/L for preparing the test solution was weighed on weighing scoops and transferred to a volumetric flask. Test medium was added up to the bench mark and the solution was homogenised by shaking. 50 mL of the prepared solution was transferred to each test vessel.
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Daphnia magna STRAUS, Clone V, was used as the test organism. The animals are continuously bred in the laboratory and were originally purchased in a healthy condition from the Umweltbundesamt (Federal Environment Agency) in Berlin/Germany.
Daphnia magna was bred as single culture (one daphnid per 100 mL) in Elendt M4 medium. The pH-value of the aerated water was within a range of 6.0 – 9.0. The dissolved oxygen was above 60 % saturation and the total hardness 140 - 250 mg/L (as CaCO3), corresponding to 7.8 - 14°dH. The animals were fed with single cell green algae (Desmodesmus subspicatus, formerly Scenedesmus subspicatus) at least three times a week.
The daphnids were reared at a temperature of 20 ± 2 °C in a climatic chamber with 16 hours of illumination and 8 hours of darkness. The medium was changed three times per week. A pipette was used to separate the young daphnids from the adults.
Freshly hatched daphnids less than 24 hours old were used for the test. - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
- Hardness:
- 13°dH (232 mg/L as CaCO3)
- Test temperature:
- 20.3 - 20.9 °C
- pH:
- 7.21 - 7.95
- Dissolved oxygen:
- >= 8.3 mg/L
- Nominal and measured concentrations:
- 0 and 100 mg/L
- Details on test conditions:
- Exposure to light: 16 hours photoperiod / 8 hours darkness daily
Test vessels: four 100 mL glass beakers per concentration, each filled with 50 mL, one additional replicate for measurements without test organisms
Loading: 10 mL of test solution for each animal
Aeration: none
Number of animals: 20 per concentration in 4 replicates of 5 - Reference substance (positive control):
- yes
- Remarks:
- potassium dichromate
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Details on results:
- After 24 and 48 hours of exposure no immobilisation was observed in the control and at 100 mg/L.
- Results with reference substance (positive control):
- Reference substance: Potassium dichromate
EC50 (24 h) lies between 1.0 and 2.0 mg/L - Reported statistics and error estimates:
- The 24 h and 48 h EC50 are the estimated concentrations where 50 % of the daphnids were immobilised after 24 and 48 hours, respectively.
No statistical evaluation was indicated since no immobilisation occurred at the limit test concentration of 100 mg/L.
The NOEC was established based on the highest concentration at which the immobilisation is not higher than the allowed control immobilisation (>= 10 % immobilisation). - Validity criteria fulfilled:
- yes
- Conclusions:
- Tthe EC50 (48 h) for immobilisation was determined to be >100 mg/L (nominal). The corresponding NOEC (48 h) was 100 mg/L (nominal).
- Executive summary:
The toxicity of FAT 20033/L on Daphnia magna was tested in a 48 hour acute immobilisation test. The test was performed according to OECD Guideline 202. Twenty organisms per test concentration (4 replicates of 5 animals each) were used. The duration of the test was 48 hours. A semi-static limittest with concentrations of 0 and 100 mg/L was performed. Test solutions were prepared by dilution of the test item in test medium and application of defined volumes of the test solutions to the test vessels. Endpoints reported are the EC50 and the NOEC after 24 and 48 hours. The initial mean measured contents at 100 mg/L were 93 % of nominal and the aged measured content was 81 % of nominal. Therefore the toxicological endpoints were evaluated using nominal concentrations. After 24 and 48 hours of exposure no immobilisation was observed in the control and at 100 mg/L. Hence, the EC50 (48 h) for immobilisation was determined to be >100 mg/L (nominal). The corresponding NOEC (48 h) was 100 mg/L (nominal).
Reference
Description of key information
The EC50 (48 h) for immobilisation was determined to be >100 mg/L (nominal). The corresponding NOEC (48 h) was 100 mg/L (nominal).
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
The toxicity of FAT 20033/L on Daphnia magna was tested in a 48 hour acute immobilisation test. The test was performed according to OECD Guideline 202. A static limit test with concentrations of 0 and 100 mg/L was performed. According to the results of the test, the EC50 (48 h) for immobilisation was determined to be > 100 mg/L (nominal). The corresponding NOEC (48 h) was 100 mg/L (nominal).
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