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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
(Q)SAR
Adequacy of study:
key study
Study period:
March 15th, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Remarks:
QSAR was performed on the oleic acid, as a representative structure and predominant constituent of the fatty acids in the substance XP 453. Fatty acid is a product of the fast hydrolysis of XP 453.
Justification for type of information:
1. SOFTWARE iSafeRat® HA-QSAR toolbox v2.4
2. MODEL (incl. version number) iSafeRat® holistic HA-QSAR v1.8

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Deviations:
not applicable
Remarks:
QSAR Model
GLP compliance:
no
Type of method:
flask method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Oleic acid
Cas Number:
112-80-1
Molecular formula:
C18H34O2
IUPAC Name:
Oleic acid
Test material form:
other: Not applicable for QSAR
Specific details on test material used for the study:
QSAR was performed on the oleic acid, as a representative structure and predominant constituent of the fatty acids in the substance XP 453. Fatty acid is a product of the fast hydrolysis of XP 453.

Study design

Analytical method:
other: Not applicable to QSAR study.

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
7.4
Temp.:
25 °C
pH:
4
Details on results:
The log D are calculated as follows:
pH; log D at 25°C; major form of the molecule
4; 7.4; unionised
7; 5.4; ionised
10; 2.4; ionised

Applicant's summary and conclusion

Conclusions:
The log KOW is calculated for the neutral form of the test item as equal to 7.4 at 25°C.
The log D are calculated as follows:
pH; log D at 25°C; major form of the molecule
4; 7.4; unionised
7; 5.4; ionised
10; 2.4; ionised