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Registration Dossier
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Diss Factsheets
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EC number: 204-527-9 | CAS number: 122-19-0
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Study period:
- From October 17, 2017 to October 17, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Version / remarks:
- Calculated from individual solubilities in water and n-octanol, as the test substance is surface active
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Version / remarks:
- Calculated from individual solubilities in water and n-octanol, as the test substance is surface active
- GLP compliance:
- not specified
- Type of method:
- estimation method (solubility ratio)
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- Identity: Benzyldimethyl(octadecyl)ammonium chloride
Batch no: 14217
Appearance: White to off white solid
Composition: Benzyldimethyl(octadecyl)ammonium chloride
Content: Cationic activity 97.6%
Expiry date: 06/2019
Storage conditions: Room temperature, in dark, in closed vessel - Analytical method:
- other: Not applicable
- Key result
- Type:
- log Pow
- Partition coefficient:
- ca. 3.89
- Temp.:
- 20 °C
- Remarks on result:
- other: Calculation method based on solubility ratio
- Conclusions:
- Under study conditions, the partition coefficient of the test substance, C18 ADBAC, was determined to be 3.89.
- Executive summary:
The partition coefficient of the test substance, C18 ADBAC, was determined, according to the calculation method (based on ratio of solubility in n-octanol and water) specified in OECD Guideline 107 and EU Method A.8. The n-octanol solubility and water solubility were determined to 133-160 g/L (160 g/L was considered for calculation, as worst case) and 20.8 mg/L in the respective studies. Under study conditions, the partition coefficient (log Pow) of the test substance, C18 ADBAC, was determined to be 3.89 (Wennenwetsch, 2018).
Reference
Result
The octanol solubility and water solubility were determined to 133 -160 g/L (160 g/L considered for calculation) and 20.8 mg/L respectively, in earlier studies.
Pow = Octanol solubility/Water solubility = log 160000/20.8 = 7692
The Log Pow for C18 ADBAC was determined to be 3.89
Description of key information
The partition coefficient of the test substance was determined, according to the calculation method (based on ratio of solubility in n-octanol and water) specified in OECD Guideline 107 and EU Method A.8 (Wannenwetsch, 2018)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 3.89
- at the temperature of:
- 20 °C
Additional information
(calculated based on solubility ratio)
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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