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Diss Factsheets

Physical & Chemical properties

Partition coefficient

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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
Remarks:
Procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturer)
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: ETAD Analytical Expert Group
Version / remarks:
method for substances with very low solubility in both, water and n-octanol
Principles of method if other than guideline:
Based on the determined solubilities in water and in n-octanol the partition coefficient was estimated. Instead of saturated solvent
systems pure solvents were used.
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Test material form:
solid: bulk

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
-2.6
Temp.:
24 °C
pH:
ca. 7
Type:
Pow
Partition coefficient:
0.003
Temp.:
24 °C
pH:
ca. 7

Any other information on results incl. tables

Solubility of the test substance in n-octanol: 0.094 mg/l

Water solubility of the test substance : 35.4 mg/l

Pow = 0.0026

log Pow = - 2.6

Applicant's summary and conclusion