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Diss Factsheets
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EC number: 937-913-7 | 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
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
Octanol/water partition coefficient (Log Pow): 1.12 (calculated using Chemsilico software)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 1.12
Additional information
- As the test item was a complex mixture of a metal oxide with organic ligands, it was considered not applicable to the HPLC method as the reference standards detailed in the guidelines are not of similar chemical classes. Therefore, correlation to the calibration plot would be subject to significant error.
- Although a single preliminary sample was attempted, this indicated the shake-flask method was not applicable. It was observed that the test item was removed from the organic phase by centrifugation indicating it was a suspension and not a true solution. lf a lower stock solution concentration was prepared to dissolve all the test item, this may be too low to measure a reliable partition coefficient.
- In combination with only having a non-specific analytical method and the shake-flask method not being ideal for mixtures, the analysis results for the organic and aqueous phases may have been for different components of the test item that have significantly different partition coefficients. This is especially the case with there being organic and inorganic components in the test item.
- Also, it would not be possible to calculate a partition coefficient based on the solubility of the test item in water and n-octanol for two reasons. Firstly, as both analytical methods used to measure the water solubility were not test item specific and only one of these could be used for n-octanol, it would be subject to error to compare the solubilities in the two solvents and be analyte selective. Additionally, although it was noticed the test item was a suspension in n-octanol at lower concentrations, at very high concentrations it appeared the test item was miscible with n-octanol. These would both lead to doubts over any result. Therefore, an accurate and reliable partition coefficient result was considered not possible. It can only be anticipated that the test item would favor the organic phase over the aqueous phase as very high concentrations were possible in n-octanol but not in water.
Experimental determination of the partition coefficient was commissioned but a result was not obtained for the following reasons:
As the test item was not applicable to the partition coefficient test, no determination was carried out using Method A8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method l07 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 or Method ll7 of the OECD Guidelines for Testing of Chemicals, 13 April 2004. The following reasons are given:
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