Registration Dossier
Registration Dossier
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EC number: 270-331-5 | CAS number: 68424-95-3
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- read-across source
- GLP compliance:
- no
- Type of method:
- other: Determination of n-octanol solubility
- Partition coefficient type:
- other: Determination of n-octanol solubility
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Didecyldimethylammonium chloride
- Analytical purity: 98.3%
- Appearance: white waxy solid - Analytical method:
- analysis (not specified)
- Key result
- Type:
- log Pow
- Partition coefficient:
- 2.59
- Temp.:
- 20 °C
- pH:
- 7
- Details on results:
- The mean n-octanol solubility of the test substance was 250 g/L at 20°C.
- Conclusions:
- The log Pow of the test substance was determined based on its solubility in n-octanol and its solubility in water, measured as critical micelle concentration. The solubility in octanol was equivalent to 250 g/L (20°C) (Hirschen M, 2010), that in water to 0.65 g/L (20°C) (Schulze M, 2007). The log Pow is therefore 2.59.
- Executive summary:
The solubility of the test substance in n-octanol was determined according to OECD Guideline 105. The mean n-octanol solubility of the test substance was 250 g/L at 20°C.
The log Pow of the test substance was determined based on its solubility in n-octanol and its solubility inwater, measured as critical micelle concentration. The solubility in octanol was equivalent to 250 g/L (20°C), that in water to 0.65 g/L (20°C) (Schulze M, 2007). The log Pow is therefore 2.59.
Reference
Description of key information
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 2.59
- at the temperature of:
- 20 °C
Additional information
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