Registration Dossier

Diss Factsheets

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
partition coefficient
Type of information:
other: bibliography
Adequacy of study:
weight of evidence
Study period:
2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
as a UVCB and natural complex substance, it is considered a constituents approach. This mother tincture contains about 65% (v/v) of ethanol.
Qualifier:
no guideline available
Principles of method if other than guideline:
the principle of method is described in Sangster, J ., J. Phys. Chem. Ref. Data, 18, 1111, 1989.
Key result
Type:
log Pow
Partition coefficient:
-0.31
Temp.:
25 °C
pH:
ca. 7
Remarks on result:
other: pH is presumed because not described in HSDB monography
Details on results:
source : [Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995., p. 5] **PEER REVIEWED**
Conclusions:
log Kow = -0.31 for ethanol
Ethanol is an hydrophilic substance.
Endpoint:
partition coefficient
Type of information:
other: bibliography
Adequacy of study:
weight of evidence
Study period:
2000
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
according to guideline
Guideline:
other: EPI suite
Version / remarks:
4.11
Type:
log Pow
Partition coefficient:
-0.31
Temp.:
25 °C
pH:
7
Remarks on result:
other: pH is not available
Conclusions:
log Kow = -0.31 for ethanol according to EPI suite v4.11.

Description of key information

The Ledum palustre mother tincture is a natural complex substance. It is a mixture of several components, but two of them represent 98% (v/v) of that mixture.

One is water itself and the second one is ethanol present at 65% in the mixture.

LogP of ethanol is -0.31 at 25°C.

Key value for chemical safety assessment

Additional information