Registration Dossier
Registration Dossier
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EC number: 289-997-3 | CAS number: 90063-39-1 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Ledum palustre, Ericaceae.
Partition coefficient
Administrative data
Link to relevant study record(s)
- 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.
Referenceopen allclose all
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
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
