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EC number: 273-760-6 | CAS number: 69012-63-1 By-product of refining of zinc ores consisting primarily of zinc, lead and iron.
- 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
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Tests done according to standard protocol. Good quality and considered useful for setting the reference value for acute aquatic ecotoxicity. Culture medium, test water conditions well described and relevant the purpose of classification.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Flue dust, zinc-refining
- EC Number:
- 273-760-6
- EC Name:
- Flue dust, zinc-refining
- Cas Number:
- 69012-63-1
- Molecular formula:
- Not applicable - UVCB
- IUPAC Name:
- Zinc oxide enriched flue dust
- Reference substance name:
- flue dust, zinc refining
- IUPAC Name:
- flue dust, zinc refining
- Details on test material:
- Waelz oxide was "ungelaucht"
zinc compounds >50%
lead compounds 5-10%
cadmium compounds < 0.25%
Constituent 1
Constituent 2
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- samples were taken at the start and end of test, and stabilised with HNO3
Test solutions
- Vehicle:
- no
- Details on test solutions:
- according to OECD 202. The test was performed on a "water soluble fraction" according to the OECD series on testing and assessment Number 23, : "Guidance document on aquatic toxicity of difficult substances and mixtures".
The water soluble fraction was prepared by stirring 100mg of waelz oxide in 1L Daphnid testing solution for 24hrs. After settling for 1hr, tyhe "water accommodated fraction" was taken from the middle of the solution, and filtered over a 0.2µm cellulose-acetate filter to get the "water soluble fraction". This was used in the test.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- D. magna originating from the Umweltbundesambt, abteilung V3.2. were used. The animals were fed 5 days a week with algae suspension consisting of Desmodesmus subspicatus. The culture was stabile.
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Test temperature:
- 19.4-20°C
- pH:
- diffference between start and end of test was <0.5 pH units
- Dissolved oxygen:
- 8.6-10.2 mg O2/l
- Nominal and measured concentrations:
- measured zinc concentration at end of test: 296µg/l (with 100mg/l loading).
measured Pb and Cd were 49µg/l and 58µg/l, respectively
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Tests done according to standard protocol. Good quality and considered useful for setting the reference value for acute aquatic ecotoxicity.
- Executive summary:
A limit test according to OECD 202 with 100mg/l loading of Waelz zinc oxide demonstrated that the EC50 for Daphnia magna was > 100mg/l.
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