Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
GLP compliance:
not specified
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water
Analytical method:
other: Methylene Blue colorimetric method
Type:
log Pow
Partition coefficient:
-0.7
Temp.:
20 °C
Remarks on result:
other: pH not provided in the published paper

Description of key information

A measured log Kow value of -0.7 is reported for the C8 analogue. This is used as a worse case for the substance.

Key value for chemical safety assessment

Log Kow (Log Pow):
-0.7
at the temperature of:
20 °C

Additional information

The log Kow measured for the C8 alkane sulfonate using the shake flask method was -0.7. This value is taken to represent a worse case for the substance and the other main constituent, the C6 alkane sulfonate, is expected to have a lower log kow due to the shorter alkyl chain length.