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EC number: 939-717-7 | CAS number: 1474044-79-5
- 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:
- Start : 19 March 2012 Completion : 29 June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study without deficiencies
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Version / remarks:
- OECD 107 - Estimation method
- Deviations:
- no
- Principles of method if other than guideline:
- A relatively high log Pow is expected based on the molecular structure of the test substance. Therefore, the shake-flask method is not applicable. The HPLC method cannot be applied because the test substance is a salt. Based on this, it was decided to use the estimation method for the determination of the Pow.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Analytical method:
- other: The solubility in water was described in section 4.8 Water solubility.001. The solublity of the test substance is determined in n-octanol and the Pow is determined directly as the quotient of these values.
- Type:
- log Pow
- Partition coefficient:
- > 6.6
- Temp.:
- 20 °C
- Remarks on result:
- other: pH not available in estimation method
- Details on results:
- To determine the solubility in n-Octanol, the test substance was stirred with n-octanol at a nominal concentration of 1042 g/l at 20.0 ± 0.3°C for 90 hours (4 days). After stirring, the test sample was checked visually for any undissolved material.
Water solubility
Information on the water solubility of the test substance is given in section 4.8 Water solubility.001. The water solubility was 266 μg/l. - Conclusions:
- The log Pow > 6.6.
- Executive summary:
The partition coefficient of Calcium bis( di C8-C10, branched, C9 rich, alkylnaphthalene sulphonate) was determined by the estimation method following EU Method A.8 and OECD 107.
In the estimation method, the solubility of the test substance in n-octanol and in water is determined. The quotient of the n-octanol solubility and the water solubility is an estimation of the Pow. The estimation method can be applied if the shake flask method and HPLC method are not applicable.
n-Octanol solubility Test substance was stirred with n-octanol at a nominal concentration of 1042 g/l at 20.0 ± 0.3°C for 90 hours (4 days). After stirring, the test sample was checked visually for any undissolved material. Water solubility Information on the water solubility of the test substance is given in section 4.8 Water solubility.001. The water solubility was 266 μg/l.
Calculation of Pow and Log Pow
Solubility in n-octanol > 1,000,000 mg/L
Solubility in water = 0.266 mg/L
Therefore the quotient of the n-octanol solubility and the water solubility (Pow) > 3.76e+6 and the log10 of the Pow > 6.6.
Reference
Pow = Cn-octanol / Cwater
Solubility in n-octanol > 1,000,000 mg/L
Solubility in water = 0.266 mg/L
The quotient of the n-octanol solubility and the water solubility (the Pow) is > 3.76e+6.
The log10 of the Pow > 6.6.
Description of key information
The quotient of the n-octanol solubility and the water solubility (the
Pow) is > 3.76e+6.
The log10 of the Pow > 6.6.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 6.6
- 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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