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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
04/2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water
Type:
log Pow
Partition coefficient:
< -4.9
Temp.:
20 °C
pH:
7
Remarks on result:
other:
Remarks:
As the value was calculated no values for pH or temperature were determined. Thus, standard conditions can be assumed.

Solubility of the substance in 1-octanol: < 2mg/L

Solubility of the substance in demineralized water: > 143000 mg/L

These concentrations of the substance were used to calculate the partition coefficient (n-octanol / water) as log Pow.

Pow of the substance: < 2mg/L / > 143000 mg/L = < 0.00001399

For partition coefficient of the substance follows: log Pow = < -4.9

Conclusions:
Calculated with the octanol solubility and the water solubility the logPow of the substance was < -4.9.
Executive summary:

To calculate the partition coefficient, solubility tests of the substance in 1-octanol and in demineralized water were prepared. The result of the tests show, that the test item was < 2 mg/L soluble in 1-octanol and > 143000 mg/L in demineralised water.

These concentrations of the substance were used to calculate the partition coefficient (n-octanol / water) as log Pow.

Pow of the substance: < 2mg/L / > 143000 mg/L = < 0.00001399

For partition coefficient of the substance follows: log Pow = < -4.9

Description of key information

Calculated with the octanol solubility and the water solubility the logPow of the substance was < -4.9.

Key value for chemical safety assessment

Log Kow (Log Pow):
-4.9
at the temperature of:
20 °C

Additional information

"should read: <-4.9 at 20°C"

To calculate the partition coefficient, solubility tests of the substance in 1-octanol and in demineralized water were prepared. The result of the tests show, that the test item was < 2 mg/L soluble in 1-octanol and > 143000 mg/L in demineralised water.

These concentrations of the substance were used to calculate the partition coefficient (n-octanol / water) as log Pow.

Pow of the substance: < 2mg/L / > 143000 mg/L = < 0.00001399

For partition coefficient of the substance follows: log Pow = < -4.9