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Physical & Chemical properties

Solubility in organic solvents / fat solubility

Administrative data

Endpoint:
solubility in organic solvents / fat solubility
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: scientifically acceptable, guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
other: measured (flask method)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Barium bis[5-chloro-4-ethyl-2-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate]
EC Number:
267-122-6
EC Name:
Barium bis[5-chloro-4-ethyl-2-[(2-hydroxy-1-naphthyl)azo]benzenesulphonate]
Cas Number:
67801-01-8
Molecular formula:
C18H15ClN2O4S.1/2Ba
IUPAC Name:
barium bis{5-chloro-4-ethyl-2-[(2-hydroxy-1-naphthyl)diazenyl]benzenesulfonate}
Details on test material:
Name of test material (as cited in study report): Pigment Orange 46:Ba (lab sample), Lot number: HW-08-03

Results and discussion

Solubility in organic solvents / fat solubilityopen allclose all
Medium:
n-octanol
Solubility:
2 272 µg/L
Temp.:
23 °C
Remarks on result:
other: measured immediately after filtration
Medium:
n-octanol
Solubility:
1 796 µg/L
Temp.:
23 °C
Remarks on result:
other: measured after one week

Any other information on results incl. tables

The pigment-solutions were not stable. After ca. one week an agglomeration of the pigment can be

observed (especially in water). So there are two different results given for this pigment.

One measurement was made immediately after filtraton of the pigment. The clear solution was

injected in the HPLC. The second measurement was made after one week. The solution shows an

agglomeration of the pigment. This pigment was filtrated again and the clear solution was injected

in the HPLC.

Applicant's summary and conclusion

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