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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Version / remarks:
July 27, 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - Shake Flask Method)
Version / remarks:
March 04, 2016
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7550 (Partition Coefficient, n-octanol / H2O, Shake Flask Method)
Version / remarks:
August 1996
Deviations:
no
GLP compliance:
yes
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium diisopropylnaphthalenesulphonate
EC Number:
215-343-3
EC Name:
Sodium diisopropylnaphthalenesulphonate
Cas Number:
1322-93-6
Molecular formula:
C16H20O3S.Na
IUPAC Name:
sodium diisopropylnaphthalene-sulfonate
Test material form:
solid: particulate/powder
Details on test material:
white to off-white lumps

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
>= 2.6
Temp.:
20 °C
Remarks on result:
other: pH not reported
Details on results:
The octanol solubility of the test item at 20°C was ≥ 777 g/L.
The Pow, calculated as the quotient of the n-octanol and critical micelle concentration, is ≥ 3.7  102. It corresponds with a log Pow value of ≥ 2.6.

Applicant's summary and conclusion

Conclusions:
The estimation method was applied for the determination of the partition coefficient (Pow) of CH04207.
The Pow value of the test item at 20°C was ≥ 3.7 * 10^2.
It corresponds with a log Pow value of ≥ 2.6.