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Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
26 Sept 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented study report which meets basic scientific principles.
Principles of method if other than guideline:
Calculation of log Pow from solubility in octanol (see section 4.9) and water (see section 4.8).
Type of method:
other: Calculation
Partition coefficient type:
octanol-water
Analytical method:
other: chromatography and UV-vis spectrometry
Type:
Pow
Partition coefficient:
1 598
Temp.:
23 °C
pH:
ca. 7
Type:
log Pow
Partition coefficient:
3.2
Temp.:
23 °C
pH:
ca. 7
Details on results:
The octanol and the water solubility were both determined at 23-24 °C.
It is not possible to enter a temperature range in the field above, therefore 23 °C was taken as the temperature value.

Calculation:

log Pow = log (c(n-octanol)/c(water))

(c: individual solubilities; see sections 4.8 and 4.9 and below).

Octanol solubility [µg/L]

 8630

Water solubility [µg/L]

 5.4
Conclusions:
The calculated log Pow of the test substance is 3.2.
Executive summary:

The log Pow of the test substance was calculated from the solubility in octanol (see section 4.9) and the solubility in water (see section 4.8). The calculated log Pow of the test substance is 3.2 at 23 -24°C.

Description of key information

The log Pow of the test substance was calculated from the solubility in octanol (see section 4.9) and the solubility in water (see section 4.8). The calculated log Pow of the test substance is 3.2 at 23 -24°C.

Key value for chemical safety assessment

Log Kow (Log Pow):
3.2
at the temperature of:
23 °C

Additional information

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