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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
06/04/2020 to 29/05/2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: EU Method A.8 - Estimation method
Principles of method if other than guideline:
The solubility of the test item in n-octanol and in water is determined. The quotient of the n-octanol solubility and the water solubility is an estimation of the Pow. The estimation method can be applied if the shake flask method and HPLC method are not applicable.
GLP compliance:
yes
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Type:
Pow
Partition coefficient:
< 0.003
Temp.:
20 °C
Remarks on result:
other: pH not mentioned
Type:
log Pow
Partition coefficient:
< -2.5
Temp.:
20 °C
Remarks on result:
other: pH not mentioned
Conclusions:
The estimation method was applied for the determination of the partition coefficient of MEAHA-Na.
The Pow value of the test item at 20°C was estimated at < 0.00313.
This corresponds with a log Pow value of < -2.5.
Executive summary:

The estimation method was applied for the determination of the partition coefficient of MEAHA-Na.

The Pow value of the test item at 20°C was estimated at < 0.00313.

This corresponds with a log Pow value of < -2.5.

Description of key information

The estimation method was applied for the determination of the partition coefficient of MEAHA-Na.

The Pow value of the test item at 20°C was estimated at < 0.0031.

This corresponds with a log Pow value of < -2.5.

Key value for chemical safety assessment

Log Kow (Log Pow):
-2.5
at the temperature of:
20 °C

Additional information