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Physical & Chemical properties

Partition coefficient

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partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16 February 2018 to 1 March 2018
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
not specified
GLP compliance:
Type of method:
HPLC method
Partition coefficient type:
Analytical method:
high-performance liquid chromatography
log Pow
Partition coefficient:
23 °C
Remarks on result:
other: pH not available

Final Result

The HPLC method revealed a n-octanol/water partition coefficient (log Pow) for the test substance:

log Pow (Perlastan C-30) = -1.3 (at 23±1 °C)

The worst case log Pow calculated from the retention time of the peak cut-off was 4.8. The averaged log Pow including the retention time from the start to the peak cut-off was not computable.


Individual results

The test results displayed an average log Pow of -1.3±0.0.

Table : The calculated log Pow values for the peak of Perlastan C-30

               start      cut-off  peak

               n.c.        4.8         -1.3

               n.c.        4.8         -1.3

               n.c.        4.8         -1.3

n.c. = not computable


It was not possible to calculate a weighted average since the single peaks of Perlastan C-30 components could not be distinguished.

Description of key information

Log Kow is -1.3 at 23 °C (OECD 117, HPLC method)

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
23 °C

Additional information