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EC number: 929-209-3 | 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
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 31 Oct 2018 - Jan 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Analytical monitoring:
- yes
- Details on sampling:
- The samples were taken from the biological phase of the study. Collecting, storage and handing over of the samples were the Study Director’s responsibility. The information concerning the samples was provided by the Study Director.
One sample of the freshly prepared stock solution filtrate and duplicate samples from the freshly prepared test media of the only test concentration and the control were taken at the start of the test and at each test medium renewal (on day 1, 2 and 3).
For the determination of the stability of the test item under the test conditions and of the maintenance of the test item concentration during the test period, duplicate samples from the aged test media of the only test concentration and the control were collected at each test medium renewal (on day 1, 2 and 3) and the end of the test (after 96 hours) from the approximate centre of the aquaria.
The samples were diluted by a factor of two with acetonitrile.
Additional samples of the control and of the dilution solvent were taken at each sampling without any sample treatment. - Vehicle:
- no
- Details on test solutions:
- Reconstituted Water
(ISO Medium):
In deionised water (conductivity <= 10 µScm-1) analytical grade salts were added to following nominal concentrations:
CaCl2 x 2H2O : 2.0 mmol/L (= 294.0 mg/L)
MgSO4 x 7H2O : 0.5 mmol/L (= 123.0 mg/L)
NaHCO3 : 0.75 mmol/L (= 65.0 mg/L)
KCl : 0.075 mmol/L (= 5.8 mg/L)
Water Hardness : 2.5 mmol/L (= 250.0 mg/L) as CaCO3
Alkalinity : 0.8 mmol/L
Ratio of Ca : Mg = 4 : 1 (based on molarity)
Na : K = 10 : 1 (based on molarity) - Test organisms (species):
- Oncorhynchus mykiss (previous name: Salmo gairdneri)
- Details on test organisms:
- TEST ORGANISM
- Common name: Rainbow trout
- Strain: Oncorhynchus mykiss
- Source: Forellenzuchtbetrieb Störk, 88348 Bad Saulgau, Germany
- Age at study initiation (mean and range, SD): juvenile
- Length at study initiation (length definition, mean, range and SD): 4.75 +/- 0.5 cm
- Weight at study initiation (mean and range, SD): 1.20 +/- 0.40 g
- Method of breeding: laboratory standard
- Maintenance of the brood fish: 12 days under test conditions
ACCLIMATION
- Acclimation period: 12 days
- Acclimation conditions (same as test or not): same
- Type and amount of food during acclimation:
- Feeding frequency during acclimation: three times per week or daily until 24 hours before the test was started
- Health during acclimation (any mortality observed): no
FEEDING DURING TEST
- Food type: --
- Amount: --
- Frequency: -- - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
- Hardness:
- 250 mg/L
- Test temperature:
- 13.8 to 14.7 °C
- pH:
- 7.4 - 7.9
- Dissolved oxygen:
- 92 to 101 %
- Nominal and measured concentrations:
- The lowest EC50 value of existing relevant algae or acute invertebrate (e.g. daphnia) tests was set as threshold concentration. This threshold approach was performed in order to demonstrate that the test item has no toxic effects on the test fish up to the threshold concentration or at 100 mg (test item)/L.
Due to the low limit of water solubility of the test item, a filtrate of nominal 100 mg/L was prepared. From this stock solution, a nominal test concentration of 0.045 mg test item/L and a control were prepared.
The dilution of this filtrate corresponds to following geometric mean measured concentrations of the test item:
0.0241 mg test item/L and a control. - Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 0.045 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 0.045 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 0.024 mg/L
- Nominal / measured:
- meas. (geom. mean)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- - Behavioural abnormalities: no
- Observations on body length and weight:no
- Other biological observations: no
- Mortality of control: no
- Other adverse effects control: no
- Abnormal responses: no
- Any observations (e.g. precipitation) that might cause a difference between measured and nominal values: no
- Effect concentrations exceeding solubility of substance in test medium: no - Sublethal observations / clinical signs:
Observed Mortality of unfed Rainbow Trout (Oncorhynchus mykiss) exposed to the test item filtrate for 96 hours
Nominal Loading Rate / [mg/L] Mortality 0 h 2 h 24 h 48 h 72 h 96 h Control 0 0 0 0 0 0 0.0241 0 0 0 0 0 0 LC50 / [mg/L] > 0.0241 > 0.0241 > 0.0241 > 0.0241 > 0.0241 > 0.0241 95 % Cl n.d. n.d. n.d. n.d. n.d. n.d.
Nominal loading rate: 0.045 mg/L
- Validity criteria fulfilled:
- yes
- Conclusions:
- The toxic effect of the test item to Rainbow Trout (Oncorhynchus mykiss) was assessed in a semi-static concentration-response test. Based on the test results the 96-hour LC50 was determined to be > 0.0241 mg test item/L which corresponds to 0.045 mg/L nominal loading rate.
Reference
Description of key information
GLP compliant OECD 203 Study: EC50 > 0.0241 mg/L (nominal threshold concentration of 0.045 mg/L as defined by lowest effect observed in daphnia and algae)
Key value for chemical safety assessment
Additional information
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