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Diss Factsheets
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EC number: 233-794-4 | CAS number: 10361-79-2
- 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:
- 1995
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Remarks:
- original source not available
Data source
Referenceopen allclose all
- Reference Type:
- other: student thesis
- Title:
- Aquatisch ecotoxicologisch onderzoek van zeldzame aardmetalen.
- Author:
- Den Ouden ACPH
- Year:
- 1 995
- Bibliographic source:
- Student Report HLO Delft, under the supervision of Hooftman RN, TNO-MW, Delft
- Reference Type:
- review article or handbook
- Title:
- Maximum permissible concentrations and negligible concentrations for Rare Earth elements (REEs)
- Author:
- Sneller FEC, Kalf DF, Weltje L, Van Wezel AP
- Year:
- 2 000
- Bibliographic source:
- RIVM (Rijksinstituut voor Volksgezondheid en Milieu) Bilthoven, The Netherlands; report 601501 011
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 203 (Fish, Acute Toxicity Test)
- GLP compliance:
- not specified
Test material
- Details on test material:
- No further details on test material reported in Sneller et al. (2000).
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- no details available in Sneller et al. (2000)
Test solutions
- Vehicle:
- no
- Details on test solutions:
- no details reported in Sneller et al. (2000)
Test organisms
- Test organisms (species):
- other: Brachydanio rerio
- Details on test organisms:
- Brachydanio rerio
No further details reported in Sneller et al. (2000).
Study design
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 96 h
Test conditions
- Hardness:
- 210 mg CaCO3/L
- pH:
- 6.2-8.0
- Nominal and measured concentrations:
- Measured
- Details on test conditions:
- Test performed in standard test medium (not specified).
Results and discussion
Effect concentrations
- Duration:
- 96 h
- Dose descriptor:
- LC50
- Effect conc.:
- 25 mg/L
- Nominal / measured:
- meas. (not specified)
- Conc. based on:
- element
- Basis for effect:
- mortality (fish)
- Remarks on result:
- other: not clear if dissolved or total Pr was measured
Applicant's summary and conclusion
- Conclusions:
- The 96-h LC50 of praseodymium for Brachydanio rerio was determined to be 25 mg Pr/L (based on measured concentrations, however not clear if dissolved or total Pr was measured).
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