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Diss Factsheets
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EC number: 701-475-3 | CAS number: -
- 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:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Justification for type of information:
- All members of the category ‘Lithium salts of the oxyacids of boron (B)’ are formed in situ and are immediately formulated into grease thickeners which are marketed and used within the EU/EEA and exported. Extraction from the grease thickener products would need to be performed for testing to be conducted on the isolated substance itself. As testing requires a substantial quantity of material, it was decided to perform the testing on the only isolated, available product, dilithium tetraborate for this category approach.
All lithium borate substances are expected to be soluble in water and should exhibit essentially the same water solubility value since, in a water environment, all lithium borate salts will exist in equilibrium with boric acid.
Variations due to the range of trigonal and tetrahedral species between the substances are not expected to lead to any changes in the water solubility.
An experimental study on dilithium tetraborate provided a water solubility value of 141.2 g/L which indicates that the substance is very soluble in water. This result is consistent with the data reported in the CRC Handbook for lithium metaborate which states that the substance is very soluble in water. It is expected that the UVCB- Reaction products of boric acid and lithium hydroxide will also be equally as soluble. Read-across to the result for dilithium tetraborate is therefore proposed for the REACH registration of the UVCB-Reaction products of boric acid and lithium hydroxide. - Key result
- Water solubility:
- 141.2 g/L
- Conc. based on:
- test mat.
- Temp.:
- 20 °C
- pH:
- >= 9.35 - <= 9.44
- Conclusions:
- The UVCB-Reaction products of boric acid and lithium hydroxide is expected to be very soluble in water and have a solubility of around 141.2 g/L.
- Executive summary:
All lithium borate substances are expected to be soluble in water and should exhibit essentially the same water solubility value since, in a water environment, all lithium borate salts will exist in equilibrium with boric acid. In an experimental study, dilithium tetraborate was found to have a water solubility value of 141.2 g/L which indicates that the substance is very soluble in water.
Read-across to the result for dilithium tetraborate is therefore proposed for this endpoint. A value of 141.2 g/L will also be reported for the UVCB-Reaction products of boric acid and lithium hydroxide since the any variations due to the range of trigonal and tetrahedral species between the substances are not expected to lead to any changes in the water solubility.
Reference
Description of key information
All lithium borate substances are expected to be soluble in water and should exhibit essentially the same water solubility value since, in a water environment, all lithium borate salts will exist in equilibrium with boric acid.
An experimental study on dilithium tetraborate provided a water solubility value of 141.2 g/L which indicates that the substance is very soluble in water. This result is consistent with the data reported in the CRC Handbook for lithium metaborate which states that the substance is very soluble in water. It is expected that the UVCB-Reaction products of boric acid and lithium hydroxide will also be equally as soluble. Read-across to the result for dilithium tetraborate is therefore proposed for all lithium borate substances in this category.
Key value for chemical safety assessment
- Water solubility:
- 141.2 g/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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