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Diss Factsheets
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EC number: - | 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
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1992-07-20 to 1992-07-24
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- significant methodological deficiencies
- Remarks:
- actual concentrations were not measured. - range of fish length is greater as recommended on the test guideline - conductivity of water was not stated.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 992
- Report date:
- 1992
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- Version / remarks:
- adopted 1984-04-04
- Deviations:
- yes
- Remarks:
- , please refer to the field "Rationale for reliability incl. deficiencies" above.
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.1 (Acute Toxicity for Fish)
- Version / remarks:
- 1984
- Deviations:
- yes
- Remarks:
- , please refer to the field "Rationale for reliability incl. deficiencies" above.
- GLP compliance:
- yes
- Remarks:
- exception: no stability control in the test medium was performed
Test material
- Reference substance name:
- Zirconium zircon with encapsulated hematite
- Cas Number:
- 68412-79-3
- Molecular formula:
- ZrSiO4*xFe2O3 0,1≤x≤0,5
- IUPAC Name:
- Zirconium zircon with encapsulated hematite
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material: Sicocer F Eisenrosa 2320
- OLD EC name: zirconium iron pink zircon
- NEW EC name: zirconium zircon with encapsulated hematite
- Physical state: solid, pink powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
- Details on sampling:
- no data
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method:
The product was added to the test water separately for each concentration by mixing with 1 g Tween 80 (0.1 g/L of test water); subsequently aqua bidest. was added in small quantities and then this mixture was transferred into the test water using an ultra-turrax stirrer. Analogously 0.1 g Tween 80/L test water was added to a carrier control. Subsequently the fish were placed into the aquaria.
- Controls: blank and solvent control
- Chemical name of vehicle: Tween 80
- Concentration of vehicle in test medium: 1 g Tween 80 (0.1 g/L of test water)
Test organisms
- Test organisms (species):
- Danio rerio (previous name: Brachydanio rerio)
- Details on test organisms:
- TEST ORGANISM
- Common name: zebra fish
- Source: West Aquarium GmbH, D- W3422 Bad Lauterberg, FRG
- Length: 2.96 cm (range: 2.5 - 3.6)
- Weight: 0.23 g (range: 0.09 - 0.34)
- Corpulence factor of the batch: 0.89
Housing:
The fish were kept in a flow-through tank in tap water, not chlorinated, passed through an active carbon filter and aerated with oil-free air.
- photoperiod: 16 hours light/ 8 hours dark
- total hardness: about 2.5 mmol/L
- acid capacity: about 5.5 mmol/L
- oxygen content: >60% of maximum saturation
- pH: about 8.0
- duration of housing: about 2 months
- water temperature: 21 -25 °C
- mortality during the last 2 weeks of housing: 0%
- medical treatment: none
- diet: "Tetra Min" standard feed for aquarium fish, ad libitum and on workdays additionally live and frozen artemia
- Withdrawal of food: 1 day before and during exposure
ACCLIMATION
- Acclimation conditions: test conditions corresponded to housing conditions
Study design
- Test type:
- flow-through
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
Test conditions
- Hardness:
- about 2.5 mmol/L
- Test temperature:
- 21 - 22°C
- pH:
- - test start (1 hour; blank control): 8.5
- test start (1 hour; solvent control): 8.5
- test start (1 hour; 100 mg/L): 8.7
- test start (1 hour; 1000 mg/L): 8.4
- test start (1 hour; 10000 mg/L): 8.1
- test end (96 hours; blank control): 8.5
- test end (96 hours; solvent control): 8.5
- test end (96 hours; 100 mg/L): 8.4
- test start (1 hour; 1000 mg/L): 8.6
- test end (96 hours; 10000 mg/L): 8.5 - Dissolved oxygen:
- - test start (1 hour; blank control): 8.6 mg/L
- test start (1 hour; solvent control): 8.5 mg/L
- test start (1 hour; 100 mg/L): 8.6 mg/L
- test start (1 hour; 1000 mg/L): 8.6 mg/L
- test start (1 hour; 10000 mg/L): 8.4 mg/L
- test end (96 hours; blank control): 7.5 mg/L
- test end (96 hours; solvent control): 8.1 mg/L
- test end (96 hours; 100 mg/L): 7.5 mg/L
- test start (96 hours; 1000 mg/L): 7.5 mg/L
- test end (96 hours; 10000 mg/L): 7.8 mg/L - Salinity:
- not applicable
- Nominal and measured concentrations:
- Nominal concentration: 100, 1000 and 10000 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: all-glass aquarium (30 cm X 22 cm X 24 cm)
- Aeration: slight
- No. of organisms per vessel: 10 fish
- One vessel per concentration/control
- Loading (g fish / L test water): 0.23
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: municipal water of the city of Frankenthal, not chlorinated and passed through an active carbon filter.
- total hardness: about 2.5 mmol/L
- acid capacity: about 5.5 mmol/L
- Ca content: about 90 mg/L
- Mg content: about 10 mg/L
- pH: about 7.5
OTHER TEST CONDITIONS
- Photoperiod: 16 hours light / 8 hours darkness
EFFECT PARAMETERS MEASURED:
- Determination of mortality and symptoms
TEST CONCENTRATIONS
- Range finding study
Based on the results of 2 range finding studies using tap water and the carrier Tween 80 (slight mortality (1/10) and no toxic signs at the concentrations 1000 and 10000 mg/L) the concentration 100 mg/L was selected. For classification of hazards to water the concentration 10000 mg/L was tested in parallel. - Reference substance (positive control):
- no
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- > 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks on result:
- other: 1% significance level
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Details on results:
- - aquarium contents were coloured and cloudy. Sedimentary test substance was visible about 24 hours after the beginning.
- no mortality occurred.
- no symptoms were detectable. - Results with reference substance (positive control):
- no data
- Reported statistics and error estimates:
- Determination or calculation of the median lethal concentration (LC50) using the probit analysis* after hours (nominal conc.): 1, 4, 24, 48, 72, and 96 hours.
*Reference:
Finney, D.J., Probit analysis, Cambr. Univ. Press, 3rd Ed., 1971
(certain aspects of this method have been modified)
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- LC50 (96 hours) > 10000 mg/L
NOEC: 10000 mg/L
No mortality or symptoms were observed during testing.
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