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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

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Administrative data

Endpoint:
partition coefficient
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline not known, information from a published handbook, acceptable with restrictions.

Data source

Reference
Reference Type:
review article or handbook
Title:
Handbook of chemistry and physics 89th Edition
Author:
Lide D (Ed.)
Year:
2008
Bibliographic source:
CRC Press Inc. Boca Raton. USA, p16-43

Materials and methods

Principles of method if other than guideline:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
GLP compliance:
not specified
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Benzoic acid
EC Number:
200-618-2
EC Name:
Benzoic acid
Cas Number:
65-85-0
IUPAC Name:
benzoic acid
Details on test material:
No data reported.

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
1.884
Temp.:
20 °C
pH:
7
Remarks on result:
other: Standard temperature and pressure assumed.
Details on results:
No data reported.

Applicant's summary and conclusion

Conclusions:
The log partition coefficient of benzoic acid is 1.88.
Executive summary:

No information on the primary source of this data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and relevant for use as the key study for this endpoint. The log partition coefficient of benzoic acid is 1.88.