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:
- 05/26/2020 to 06/03/2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Version / remarks:
- adopted on 13 April 2004
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- 7.2
- Temp.:
- 24.5 °C
- Remarks on result:
- other: pH not stated / weighted mean
- Type:
- log Pow
- Partition coefficient:
- >= 3.3 - <= 9
- Temp.:
- 24.5 °C
- Remarks on result:
- other: pH not stated
- Details on results:
- POW = 1.3E03 to 1E09
log POW = 3.3 to 9.0 (lower and upper limit)
weighted average of the triple determination log POW = 7.2 - Conclusions:
- The for the UVCB substance ranged from 3.3 to 9.0 (lower and upper limit); the
weighted average was 7.2. - Executive summary:
The partition coefficient n-octanol / water (log Kow / log Pow) of MDEA-Esterquat C18 unsatd. was determined according to OECD guideline 117 and EU test method A.8 using the HPLC method.
The for the UVCB substance ranged from 3.3 to 9.0 (lower and upper limit); the weighted average was 7.2.
Reference
The linear regression of the log k’ of the calibration substances against their log POW has a correlation coefficient of r = 0.9696.
The determined log POW-values of the test item derived from repeated measurements fall within a range of ± 0.1 units, thus the test is satisfactory.
Description of key information
The partition coefficient n-octanol / water (log Kow / log Pow) of MDEA-Esterquat C18 unsatd. was determined according to OECD guideline 117 and EU test method A.8 using the HPLC method.
The for the UVCB substance ranged from 3.3 to 9.0 (lower and upper limit); the weighted average was 7.2.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 7.2
- at the temperature of:
- 24.5 °C
Additional information
log Kow = 7.2 (weighted mean) (OECD TG117 /EU method A.8; HPLC method)
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