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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
07 March 2016 to 20 July 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - HPLC Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Lanolin, hydroxylated
EC Number:
270-315-8
EC Name:
Lanolin, hydroxylated
Cas Number:
68424-66-8
IUPAC Name:
Lanolin, hydroxylated
Test material form:
solid

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
> 10
Temp.:
40 °C
pH:
5.5
Details on results:
Overall log10 Pow: >10.0 Overall
Partition coefficient: >1.0E+10

Any other information on results incl. tables

Partition coefficient of sample: The retention times, capacity factor and log10 Pow value determined for the sample:

Injection

Retention Time (mins)

Capacity Factor (k')

Log10 k'

Log10 Pow

Mean Log10 Pow

1

85.513

>58.6

>1.77

>10.0

>10

2

85.527

>58.6

>1.77

>10.0

Applicant's summary and conclusion

Conclusions:
The partition coefficient of the test item has been determined to be >1.0E+10 with a log10 Pow of >10.0.
Executive summary:

The Partition Coefficient (n-octanol/water) was determined to be greater than 1.0E+10, log10 Pow of >10.0, using the HPLC method, designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 117 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.