Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
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:
- 2016-03-14 to 2016-03-24
- Reliability:
- 2 (reliable with restrictions)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Deviations:
- yes
- Remarks:
- partition coefficient was determined from the individual solubilities in water and 1-octanol
- GLP compliance:
- yes
- Type of method:
- other: individual solubilities in water and 1-octanol
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Type:
- log Pow
- Partition coefficient:
- 1.9
- Temp.:
- 20 °C
- Remarks on result:
- other: calculated from solubilities in water and octanol
- Remarks:
- pH not specified
- Conclusions:
- The log Kow of C18 and C18 unsatd. TEA-Esterquat was determined to be 1.9 at 20°C.
- Executive summary:
The n-Octanol/water partitioning coefficient (log Kow) of C18 and C18 unsatd. TEA-Esterquat was calculated from the individual solubilities in 1-octanol and water at 20 °C, respectively. The log Kow is reported to be 1.9 at 20°C.
However, due to the surface-active properties of the test substance, the 'real' water solubility is overestimated. Therefore the result should be treated with care.
Reference
1-Octanol solubility of the test item at 20 °C is 71.72 g/L.
The water solubility was determined to be 878.4 mg/L.
Description of key information
log Kow = 1.9 (OECD TG 107)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 1.9
- at the temperature of:
- 20 °C
Additional information
The n-Octanol/water partitioning coefficient (log Kow) of C18 and C18 unsatd. TEA-Esterquat was calculated from the individual solubilities in 1-octanol and water at 20 °C, respectively. The log Kow is reported to be 1.9 at 20°C.
However, due to the surface-active properties of the test substance, the 'real' water solubility is overestimated. Therefore the result should be treated with care.
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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