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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
Determination of ratio of concentrations of a compound in the two phases of a mixture of Octanol-Water at equilibrium
GLP compliance:
no
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 4-aminonaphthalene-1-sulphonate
EC Number:
204-975-5
EC Name:
Sodium 4-aminonaphthalene-1-sulphonate
Cas Number:
130-13-2
Molecular formula:
C10H9NO3S.Na
IUPAC Name:
sodium 4-aminonaphthalene-1-sulfonate
Test material form:
solid: crystalline
Details on test material:
CAS number: 130-13-2
Chemical Name: sodium 4-aminonaphthalene-1-sulphonate
Molecular formula: C10H9NO3S.Na

Results and discussion

Partition coefficient
Type:
Pow
Partition coefficient:
0.112
Temp.:
30 °C
pH:
6.89
Remarks on result:
other: Log Pow = -0.950

Applicant's summary and conclusion

Conclusions:
The experimental value of partition co-efficient of the chemical sodium 4-aminonaphthalene-1-sulphonate was found to be -0.950 (Log Kow) at 30oC and pH of 6.89 indicating that chemical to be hyrdophillic.
Executive summary:

The experimental value of partition co-efficient of the chemical sodium 4-aminonaphthalene-1-sulphonate was found to be -0.950 (Log Kow) at 30oC and pH of 6.89 indicating that chemical to be hyrdophillic.