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EC number: 600-558-0 | CAS number: 104358-16-9
- 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)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21 MAR 2007 - 19 JUL 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- Version / remarks:
- Guideline 67/548/EEC Annex V
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- gas chromatography
- Type:
- log Pow
- Partition coefficient:
- > 4.7
- Temp.:
- 23 °C
- Remarks on result:
- other: see 'Remarks'
- Remarks:
- No pH-value stated in the study report.
- Details on results:
- Experiment 1A log Pow > 4.79
Experiment 1B log Pow = 4.75
Average (1A and 1B) log Pow > 4.77
Experiment 2A log Pow > 4.42
Experiment 2B log Pow > 4.45
Average (2A and 2B) log Pow > 4.44
Experiment 3A log Pow > 4.14
Experiment 3B log Pow > 4.14
Average (3A and 3B) log Pow > 4.14 - Conclusions:
- The partition coefficient log Pow of the substance is > 4.7
- Executive summary:
The partition coefficient n-octanol/water of the test item was tested according to EU Method A.8 (Guideline 67/548/EEC Annex V) and OECD Guideline 107 in a GLP study. The partition coefficient log POW of the substance is > 4.7.
Reference
Within the development of the analytical method, the solubility in n-octanol could be estimated. 1025.3 mg/L of the test item could be dissolved in n-octanol.
The partition coefficient was calculated as log Pow above 2.0. Due to this fact the partition coefficient n-octanol/water of the test item at ambient temperature could be determined by the shake flask method.
The recovery of the standard for the aqueous phases is at 97.6 %, indicating a good accuracy of the analytical method.
The recoveries of the standards for the octanol phases range from 89.5 % to 98.7 %. The deviation of standard E is noteworthy. A similar value for the deviation can also be found in some mass balances of the test.
However, the deviations of the standard and of the mass balances of the other flasks have no effect to the result. One can assume that the amount of substance missing is situated in the oil phase. This would give a higher value of log Pow. This does not change the final result of the study. Therefore, the test has not been performed again.
Due to the low water solubility, which has been determined, it can be assumed that no further amount of the test item could be in the water phases.
Description of key information
The partition coefficient n-octanol/water of the test item was tested according to EU Method A.8 (Guideline 67/548/EEC Annex V) and OECD Guideline 107 in a GLP study. The partition coefficient log POW of the substance is > 4.7.
Key value for chemical safety assessment
Additional information
No pH-value stated in the study report.
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