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Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: non-GLP study sufficient for purpose here.
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study
Principles of method if other than guideline:
None
GLP compliance:
no
Remarks:
GLP study not necessary here
Type of method:
HPLC method
Remarks:
OECD 117
Partition coefficient type:
other: HPLC Method, OECD 117
Analytical method:
high-performance liquid chromatography
Type:
log Pow
Partition coefficient:
ca. 7.4
Temp.:
25 °C
pH:
ca. 7
Details on results:
See test results

None

Conclusions:
The experimental Log Kow (weighted average) for this substance is 7.4
Executive summary:

The octanol/water partition coefficients (log Kow) of EC 259-048-8 / CAS 54261-67-5 has been

evaluated using the HPLC method (OECD 117). A weighted average Log Kow value of 7.4 has

been calculated using various polycyclic aromatic hydrocarbon reference materials.

Description of key information

The octanol/water coefficient of Zinc Dithiophosphate substance (EC no. 259 -048 -8) has been evaluated to 7.4 (weighted average value).

Key value for chemical safety assessment

Log Kow (Log Pow):
7.4
at the temperature of:
25 °C

Additional information

The octanol/water partition coefficient (log Kow) of EC 259-048-8 / CAS 54261-67-5 has been evaluated using the HPLC method (OECD 117). A weighted average Log Kow value of 7.4 has been calculated using various polycyclic aromatic hydrocarbon reference materials.