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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Remarks:
read-across from supporting substance (analogue or surrogate)
Adequacy of study:
key study
Study period:
From July 12,2010 to July 13,2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Well described GLP compliant study conducted to recognized international test guidelines
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Fatty acids, C6-24 and C6-24-unsatd., Me esters, distn. residues- Physical state: black , brown semisolid- Analytical purity:100% - Storage condition of test material: room temperature- Solubility: < 10% in water, soluble in acetone, hexane and dichloromethane
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
> 5.7
Temp.:
25 °C
pH:
> 6 - < 8
Conclusions:
The test item elutes later than Triphenyl amine, showing several chromatographic peaks starting at 5.5 minutes up to 40.1 minutes. »With triphenylamine being the reference item with highest partition coefficient (5.7) and eluting after only 3.5 minutes, the following weighted average partition coefficient can be reported:log Pow (C-SAT1OOO51) > 5.7
Executive summary:

The partition coefficient log POW of the test item was determined according to test procedure VTA34N0OO04.01, which complies with EU test method L383 A/63-73 (EU A.8).

Description of key information

log Pow   >   5.7

Key value for chemical safety assessment

Log Kow (Log Pow):
5.7
at the temperature of:
20 °C

Additional information

The test item elutes later than Triphenyl amine, showing several chromatographic peaks starting at 5.5 minutes up to 40.1 minutes. »

With triphenylamine being the reference item with highest partition coefficient (5.7) and eluting after only 3.5 minutes, the following weighted average partition coefficient can be reported: