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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
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.
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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