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Diss Factsheets
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EC number: 446-560-3 | 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
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:
- 28 Feb - 05. Apr 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.1 (Acute Toxicity for Fish)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Analytical monitoring:
- yes
- Details on sampling:
- - Concentrations: 0.063, 0.125, 0.25, 0.5 and 1 mg/L
- Sampling method: Sampling done daily on both test solution and control
- Sample storage conditions before analysis: Direct analysis - Vehicle:
- no
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: The test concentrations were prepared daily by diluting a stock solution (1 mg/L), which was treated with an ultra turrax for 60 seconds and afterwards stirred for 24 hours on a magnetic stirrer. Finally undissolved particles of the test substance were removed by filtration.
- Controls: One control
- Test concentration separation factor: 2
- Evidence of undissolved material (e.g. precipitate, surface film, etc.): None after filtration - Test organisms (species):
- Danio rerio (previous name: Brachydanio rerio)
- Details on test organisms:
- TEST ORGANISM
- Common name: Zebra fish
- Source: Di Mamma (Netherlands)
- Length at study initiation (length definition, mean, range and SD): 3.08 cm (S.D. = 0.29 cm)
- Method of breeding: Well-established stock
- Maintenance of the brood fish: Test conditions have been established in the brood.
ACCLIMATION
- Acclimation period: Stock held since Jan. 23, 2002 and acclimatised to the test conditions since then.
- Acclimation conditions (same as test or not): Same as test
- Type and amount of food during acclimation: Commercial fish food
- Feeding frequency during acclimation: Fed daily
- Health during acclimation (any mortality observed): Mortality < 2%
FEEDING DURING TEST (as applicable)
No feeding during exposure - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
- Hardness:
- 13.4 °dH (= 239.2 mg/1 CaCO3)
- Test temperature:
- 20 - 24 °C
- pH:
- 7.5 - 7.9
- Dissolved oxygen:
- > 5 mg/L (8-5 - 8.8 mg/L)
- Nominal and measured concentrations:
- Nominal: 0.063, 0.125, 0.25, 0.5 and 1 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: glass aquaria holding 5 L of test media
- Aeration: gentle aeration via narrow glass tubes
- Renewal rate of test solution (frequency/flow rate): Daily renewal of test medium
- No. of organisms per vessel: 0.78 g/L loading rate, 10 animals per concentration
- No. of vessels per concentration (replicates): 1 vessel
- No. of vessels per control (replicates): 1 vessel
- Biomass loading rate: 0.78 g/L
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: Reconstituted water prepared according to the recommendations of ISO 7346. This freshly prepared standard dilution water is used for both, the maintenance of the test animals under flow-through conditions and the preparation of stock and test solutions of the test substance.
- Culture medium different from test medium: No
OTHER TEST CONDITIONS
- Adjustment of pH: No
- Photoperiod: 16 h light : 8 h dark
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : Mortality observed every 24 h.
TEST CONCENTRATIONS
- Spacing factor for test concentrations: 2 - Reference substance (positive control):
- no
- Key result
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- >= 0.2 - <= 0.42 mg/L
- Nominal / measured:
- meas. (arithm. mean)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- LC100
- Effect conc.:
- 0.424 mg/L
- Nominal / measured:
- meas. (arithm. mean)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 96 h
- Dose descriptor:
- LC0
- Effect conc.:
- 0.2 mg/L
- Nominal / measured:
- meas. (arithm. mean)
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- - Mortality of control: 0%
- Sublethal observations / clinical signs:
Validity criteria for the measurement of the fish toxicity
Target condition according to guideline: Actual condition according to the study: Validity criteria met: In the control(s) (dilution water control, solvent control), the mortality should not exceed 10% (or one fish, if fewer than 10 control fish are tested) at the end of the exposure. Mortality of control: 0 fish died Yes All fish should be held in the laboratory for at least 9 days before they are used for testing. The first 48 hours constitute a settling-in period. Then, fish should be acclimatised for at least 7 days (48 hours settling-in + 7 days acclimatisation = 9 days) in water similar to test water immediately before the start of the test. Acclimation period was from 23 Jan 2002 while the test was performed at 28 Feb 2002 (acclimation period over 9 days). Yes During the acclimatisation period, mortalities are recorded, and the following criteria are applied:
- mortalities of greater than 10% of the population in seven days: reject the entire batch;
- mortalities between 5 and 10% of the population: acclimatisation is continued for seven additional days; and if there is more than 5% mortality during the
second seven day period, reject the entire batch;
- mortalities of less than 5% of population in seven days: accept the batch.Health during acclimation (~ 1 month): Mortality < 2% Yes Temperature: the water temperature should not differ by more than 2°C During the test a temperature range of 20 - 24°C was maintained in the test vessels, with a maximum temperature fluctuation of +/- 1°C in
each individual test.Yes Duration: 96 hours. Duration was 96 h. Yes - Validity criteria fulfilled:
- yes
- Remarks:
- See 'Any other information on results incl. tables'.
- Conclusions:
- LC50 (96 h): >0.2 - <0.424 mg/L (mean measured).
- Executive summary:
Groups of ten fish of the recommended size were exposed to a range of concentrations, nominally 0.063, 0.125, 0.25, 0.5 and 1 mg/L of the test substance dissolved in water. Auxiliaries used to prepare the test media were an ultra turrax, a magnetic stirrer and folded filters. Observations were made on the numbers of dead fish and the incidence of sub-lethal effects after 2, 24, 48, 72 and 96 hours of exposure. The following values were determined: LC0 = 0.2 mg/L, LC50 (96 h): >0.2 - <0.424 mg/L, LC 100 = 0.424 mg/L. All results are expressed in terms of mean measured concentrations. Measured concentrations ranged from 81-95.2% of nominal values in the freshly prepared medium and from 42.9-81.9% of nominal values after 24 hours of exposure.
Reference
Description of key information
Groups of ten fish of the recommended size were exposed to a range of concentrations, nominally 0.063, 0.125, 0.25, 0.5 and 1 mg/L of the test substance dissolved in water. Auxiliaries used to prepare the test media were an ultra turrax, a magnetic stirrer and folded filters. Observations were made on the numbers of dead fish and the incidence of sub-lethal effects after 2, 24, 48, 72 and 96 hours of exposure. The following values were determined: LC0 = 0.2 mg/L, LC50 (96 h): >0.2 - <0.424 mg/L, LC 100 = 0.424 mg/L. All results are expressed in terms of mean measured concentrations. Measured concentrations ranged from 81-95.2% of nominal values in the freshly prepared medium and from 42.9-81.9% of nominal values after 24 hours of exposure.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Dose descriptor:
- LC50
- Effect concentration:
- > 0.2 - < 0.424 mg/L
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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