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EC number: 920-164-5 | CAS number: 34160-06-0
- 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
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:
- 03 May 2018 - 05 June 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- - Batch: D05/38
- Expiration date: 30 August 2021
- Purity: 97.36%
- Storage condition of test material: Room temperature in the dark - Analytical method:
- high-performance liquid chromatography
- Type:
- log Pow
- Partition coefficient:
- < 1
- Temp.:
- 20 °C
- pH:
- 7
- Details on results:
- Standard conditions assumed.
- Results: The test item eluted at approximately the same time as the dead time standard and was seen as a partially resolved peak just next to the deadtime standard peak. As there was no retention using these HPLC conditions, it was concluded that although the method was not strictly applicable to the test item, the partition coefficient of the compound is less than that of the earliest eluting standard assessed (acetanilide) with a log10Pow value less than 1.0. - Conclusions:
- The log n-octanol/water partition coefficient (Log Kow) for potassium 12-hydroxystearate is <1.
- Executive summary:
The partition coefficient of potassium 12-hydroxystearate was determined in a GLP-compliant study following OECD guideline 117. The log n-octanol/water partition coefficient (log Kow) of potassium 12-hydroxystearate is <1.
The test item is surface active, as established from consideration of the chemical structure and as shown by direct measurement of the property. By definition of the test methods, the experimental determination of the partition coefficient is not applicable to surface active materials; however, an attempt was made to assess the property by the HPLC method since often the retention time of a material can provide a good indication of the partition coefficient.
Reference
Description of key information
The log n-octanol/water partition coefficient (Log Kow) of potassium 12-hydroxystearate is <1.
Key value for chemical safety assessment
Additional information
The partition coefficient of potassium 12-hydroxystearate was determined in a GLP-compliant study following OECD guideline 117 (Agrochemex 2018).
The test item is surface active, as established from consideration of the chemical structure and as shown by direct measurement of the property. By definition of the test methods, the experimental determination of the partition coefficient is not applicable to surface active materials; however, an attempt was made to assess the property by the HPLC method since often the retention time of a material can provide a good indication of the partition coefficient.
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