Registration Dossier
Registration Dossier
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EC number: 900-986-0 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Calendula officinalis hydroglycerinated extract is a UVCB and natural complex substance, and is assessed through constituents approach taking into account one of the main constituent : glycerol present at 50%.
- Qualifier:
- according to guideline
- Guideline:
- other: the guideline is not described on the document
- Key result
- Type:
- log Pow
- Partition coefficient:
- -1.76
- Remarks on result:
- other: calculated
- Details on results:
- Calendula officinalis hydroglycerined extract is a UVCB and natural complex substance, and is assessed through constituents approach taking into account one the main constituent : glycerol present at 50%.
- Conclusions:
- log Kow = -1.76 for glycerol
Glycerol is an hydrophilic substance. - Endpoint:
- partition coefficient
- Type of information:
- other: bibliography
- Adequacy of study:
- weight of evidence
- Study period:
- 1995
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Calendula officinalis hydroglycerinated extract is a UVCB and natural complex substance, and is assessed through constituents approach taking into account one of the main constituent : water present at 50%.
- Qualifier:
- according to guideline
- Guideline:
- other: the guideline is not described on the document
- Key result
- Type:
- log Pow
- Partition coefficient:
- ca. -1.38
- Remarks on result:
- other: calculated
- Conclusions:
- The partition coefficient of water is -1.38.
Referenceopen allclose all
Description of key information
The partition coefficient of the test substance was estimated using a constituents approach.
This final extract is a natural complex substance. It is a mixture of several components, and two of them represent about 98.5% of that mixture.
One is water itself present at about 50% and the second one is glycerol present at about 50% in the mixture.
LogP of glycerol is -1.76 at 25°C and LogP of water is -1.38.
The Log P of the final extract is between -1.76 and and -1.38.
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.
