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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:
other: Procedure according to method of Analytical Expert Group ETAD (Ecological and Toxicological Association of Dyes and Organic Pigment Manufacturer); method similar to Annex V, A.8, 1.6.1, Directive 67/548/EEC
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006
Report Date:
2006

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
EU Method A.8 (Partition Coefficient)
Principles of method if other than guideline:
Based on the determined solubilities in water and in n-octanol the partition coefficient was estimated (chapter 1.6.1, A.8). Instead of saturated solvent
systems pure solvents were used.
Type of method:
other:
Partition coefficient type:
octanol-water

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
0.53
Temp.:
24 °C
pH:
ca. 7
Type:
Pow
Partition coefficient:
3.37
Temp.:
24 °C
pH:
ca. 7

Any other information on results incl. tables

Solubility of Pigment Red 254 in n-octanol: 2.7 µg/L

Water solubility of Pigment Red 254 : 0.8 µg/L

Applicant's summary and conclusion