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Diss Factsheets
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EC number: 215-234-0 | CAS number: 1314-37-0
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 10 March 2014 - 23 September 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Water solubility:
- 269 µg/L
- Conc. based on:
- test mat. (dissolved fraction)
- Remarks:
- result calculated based on measured Yb concentrations
- Incubation duration:
- >= 24 - <= 192 h
- Temp.:
- 20 °C
- pH:
- 8
- Remarks on result:
- other: mean obtained after 5 different stirring times; Relative Standard Deviation = 56%
- Key result
- Water solubility:
- 236 µg/L
- Conc. based on:
- element (dissolved fraction)
- Remarks:
- Yb
- Incubation duration:
- >= 24 - <= 192 h
- Temp.:
- 20 °C
- pH:
- 8
- Remarks on result:
- other: mean obtained after 5 different stirring times; Relative Standard Deviation = 56%
- Conclusions:
- The water solubility of ytterbium(III) oxide determined according to the "flask method" was 269 µg/L at pH 8 and 20°C. Expressed as dissolved Yb concentration this is a water solubility of 236 µg Yb/L.
Reference
Results of the preliminary tests were as follows:
Amount of test item (mg) | Total volume (ml) | Appearance of mixture |
10.5 | 10 | undissolved particles* |
11.5 | 100 | undissolved particles* |
10.6 | 200 | undissolved particles* |
10.6 | 400 | apparently clear solution, test item completely dissolved* |
*The mixture was shaken
Results of the main test were as follows:
Mean intensity of the spectra line and calculated concentrations of ytterbium and test item:
Sample stirring time | Mean intensity (c/s) | Ytterbium content (µg Yb/L) | Content test item (µg TI/L) |
24 h | 31405 30323 |
281 | 320 |
48 h | 26133 28514 26085 26030 26034 |
242 | 276 |
72 h | 16218 16371 |
149 | 169 |
144 h | 8811 8822 |
81 | 92 |
192 h | 46981 47208 |
427 | 487 |
Number of samples: 5
Mean content of the test item: 269 µg test item/L
Standard deviation: 151 µg test item/L
Relative standard deviation (RSD): 56%
Description of key information
The water solubility of the test substance was determined according to OECD guideline 105 and the EC A.6 method (flask method) in a GLP study (Petrovic, 2014; Klimisch 1) and was found to be 236 µg/L at pH 8 and 20°C, when expressed as ytterbium content in water, and 269 µg/L, when recalculated to ytterbium oxide.
Key value for chemical safety assessment
- Water solubility:
- 269 µg/L
- at the temperature of:
- 20 °C
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.
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