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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
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19 July 2017 to 22 August 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Key result
- Type:
- relative density
- Density:
- 9.152
- Temp.:
- 21.9 °C
- Remarks on result:
- other: Mean value of two assays (assay No.1: 9.130, assay No.2: 9.173)
- Conclusions:
- The relative density of diytterbium trioxide was determined according to the EU A.3 method and OECD test guideline 109 in compliance with GLP using a gas comparison pycnometer. The relative density of the test item was determined to be 9.152 ± 0.024 at 21.9°C.
Reference
Two independent measurements at 21.8°C (assay No. 1) and 21.9°C (assay No. 2) were done. Runs 1, 2 and 3 of assay No. 1 and runs 1, 2, 3 and 4 of assay No. 2 were not taken into account because they did not comply with the quality criterion. A longer stabilisation time of the pressure was needed to obtain three consequent runs complying with the quality criterion.
The two assays resulted in relative densities of 9.130 ± 0.002 and 9.173 ± 0.008, respectively. The mean relative density was thus 9.152 ± 0.024 at 21.9°C.
Reference volume (Va) was 79.444 cm³.
Volume of sample cell holder (Vc) was 27.678 cm³.
Test item sample weight was 9.6940 g and 11.5520 g in assay No. 1 and 2, respectively.
The measurements are described in the table in the next section.
Description of key information
The relative density of diytterbium trioxide was determined in a GLP study (Klimisch 1, Demangel, 2017) according to the EU A.3 method and OECD test guideline 109 using a gas comparison pycnometer. The relative density of the test item was determined to be 9.152 ± 0.024 at 21.9°C. This value is considered as the key value for endpoint coverage.
Key value for chemical safety assessment
- Relative density at 20C:
- 9.152
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.