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Diss Factsheets
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EC number: 231-163-8 | CAS number: 7440-55-3
- 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:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- flask method
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Specific details on test material used for the study:
- test material received as small solid droplets, diamter approximately 3-4 mm
- Key result
- Water solubility:
- 45.99 µg/L
- Conc. based on:
- element
- Remarks:
- Ga
- Loading of aqueous phase:
- 500 mg/L
- Incubation duration:
- >= 36 - <= 38 d
- Temp.:
- 20 °C
- pH:
- >= 5.4 - <= 6
- Remarks on result:
- other: Result is mean solubility for 2 replicates as measured on day 36, 37 and 38. Standard deviation of solubility: 1.08 µg Ga/L
- Details on results:
- A tendency of increasing dissolved gallium concentrations was not observed after day 36 until day 38, and dissolved Ga concentrations in respective samples did not differ by more than 15 % indicating equilibrium conditions. Moreover, during the test until day 16 the measured gallium concentrations in vessel 1 compared to vessel 2 clearly differ from each other. This might be due to small differences in the Ga droplet surfaces. After day 36 the concentrations in vessel 1 and vessel 2 converged and were quantified to be in the same range.
- Conclusions:
- The mean dissolved Ga concentration at equilibrium is 46 µg Ga/L.
Reference
Description of key information
flask method according to OECD 105 guideline. Under the conditions of this test (loadings 500 g test item/L in two replicate vessels), a solubility equilibrium was observed starting on day 36 and the test was determined on day 38.The mean dissolved gallium concentration at 20.0 ± 1.0°C as measured on day 36, 37 and 38 amounts to 45.99 ± 1.08 µg Ga/L (separated by filtration from undissolved test item). The pH of solutions containing the test item and in method blanks were in the range of 5.4 – 6.0.
Key value for chemical safety assessment
- Water solubility:
- 46 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.