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Diss Factsheets
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EC number: 234-546-8 | CAS number: 12009-21-1
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- This Test Method is equivalent to OECD Test Guideline (TG) 105 (1995).
- Deviations:
- no
- Principles of method if other than guideline:
- The test substance was dispersed / dissolved in water at a temperature of 30 deg C. The vessels were tightly stoppered and then agitated at 30 deg C. (A shaking or stirring device capable of operating at constant temperature was used). After one day, one of the vessels is removed and re-equilibrated for 24 hours at the test temperature with occasional shaking. The contents of the vessel were then centrifuged at the test temperature, and the concentration of test substance in the clear aqueous phase is determined by a suitable analytical method, in this case ICP. This was repeated on days two and three and the average value reported.
- GLP compliance:
- no
- Type of method:
- flask method
- Key result
- Water solubility:
- 1.69 mg/L
- Conc. based on:
- element (dissolved fraction)
- Remarks:
- result is for Ba ion
- Temp.:
- 20 °C
- pH:
- 8.4
- Remarks on result:
- other:
- Remarks:
- This analysis is for Bx 17/1791 on an as received basis
- Key result
- Water solubility:
- 8.08 mg/L
- Conc. based on:
- element (dissolved fraction)
- Remarks:
- result is for Ba2+ ion
- Temp.:
- 20 °C
- pH:
- 8.4
- Remarks on result:
- other:
- Remarks:
- This analysis is for Bx 18/1868
- Details on results:
- The soluble Zr in solution was determined in both tests to be <10 ppm. Any dissolved zirconate would be identified by ICP, so this would imply that the solubility of barium zirconate is 'insoluble'. The soluble barium ion concentration detected by ICP is most likely to have been due to the presence of soluble barium carbonate impurity - see discussion.
The variance between the two results is likely to be due to differing levels of barium carbonate impurity in the batches tested. - Conclusions:
- The solubility of barium zirconate is very low. The level of soluble zirconium (as Zr) from the zirconate ion (ZrO3) was determined to be < 10 ppm in solution, which would imply that the solubility of the barium zirconate ion was also essentially insoluble. But this material has a trace level impurity of barium carbonate, which is variable dependent on the batch, and can be present at levels between 0 - 3% by weight.
Barium carbonate solubility is interpreted as slightly soluble (0.1-100 mg/L) according to the ECHA barium carbonate disemminated dossier.
The dissolved barium content in water determined for this substance is in the range 1 - 10 mg/l and is most likely due to the barium carbonate impurity, but this impurity is an integral part of the substance and hence barium zirconate must be classed as slightly soluble at an average value of 4.9 mg/l
Reference
Description of key information
The solubility of barium zirconate is very low. The level of soluble zirconium (as Zr) from the zirconate ion (ZrO3) was determined to be < 10 ppm in solution, which would imply that the solubility of the barium zirconate ion was also essentially insoluble. But this material has a trace level impurity of barium carbonate, which is variable dependent on the batch, and can be present at levels between 0 - 3% by weight.
Barium carbonate solubility is interpreted as slightly soluble (0.1-100 mg/L) according to the ECHA barium carbonate disemminated dossier.
The dissolved barium content in water determined for this substance is in the range 1 - 10 mg/l and is most likely due to the barium carbonate impurity, but this impurity is an integral part of the substance and hence barium zirconate must be classed as slightly soluble at an average value of 4.9 mg/l
Key value for chemical safety assessment
- Water solubility:
- 4.9 mg/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.