Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report date:
1997

Materials and methods

Principles of method if other than guideline:
Log Kow estimated using the ratio of the individual solubilities in octanol and water
GLP compliance:
yes
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Yellow MGi 1301
IUPAC Name:
Yellow MGi 1301
Test material form:
solid

Results and discussion

Partition coefficient
Partition coefficient:
-4
Temp.:
25 °C
Remarks on result:
other: from individual solubilities

Any other information on results incl. tables

The log Pow was calculated from the individual solubilities of the test article in water and n-octanol.

Octanol solubility (OS) = 4.1 mg/l

Water solubility (WS) = 39500 mg/l

Log Kow = log (OS/WS) = log (4.1/39500) = -4

Applicant's summary and conclusion

Conclusions:
log Kow = -4