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Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
November 8, 2011 - January 11, 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to other study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
Version / remarks:
(2008)
Deviations:
no
GLP compliance:
yes
Type of method:
column elution method
Water solubility:
< 0.5 other: mg Al/L
Temp.:
20 °C
pH:
6.5 - 6.8
Remarks on result:
other: Concentration of Aluminium (Al) in the with test substance saturated aqueous phase.
Water solubility:
< 1 other: μg Ce/L
Temp.:
20 °C
pH:
6.5 - 6.8
Remarks on result:
other: Concentration of Cerium (Ce) in the with test substance saturated aqueous phase.
Water solubility:
< 0.1 other: mg Mg/L
Temp.:
20 °C
pH:
6.5 - 6.8
Remarks on result:
other: Concentration of Magnesium (Mg) in the with test substance saturated aqueous phase.
Water solubility:
< 1 other: μg Tb/L
Temp.:
20 °C
pH:
6.5 - 6.8
Remarks on result:
other: Concentration of Terbium (Tb) in the with test substance saturated aqueous phase.
Details on results:
- With all test samples (n=10) of both flowrates and corresponding blanks the response of the elements was below the element response of the lowest calibration solution.
- The column material was checked by chemical analysis. It was demonstrated that the column material contained the test substance.

Preliminary test

Element

Water solubility

Al

< 0.5 mg/l (*)

Ce

91.1 µg/l

Mg

< 0.1 mg/l (*)

Tb

145 µg/l (**)

(*) Based onthe response of the lowest calibration standard and taking the diluting factor of the sample into account.

(**) Obtained by extrapolation of the calibration curve.

Conclusions:
The column elution method was applied for the determination of the water solubility of the substance in accordance with OECD 105 (1995), EU Method A.6 (2008) and according to GLP principles. Chemical analysis was performed on Aluminium, Cerium, Magnesium and Terbium. With all test samples of both flowrates and corresponding blanks the response of the elements was below the element response of the lowest calibration solution. As with all analysed samples the response of all the elements was below 0.1 mg/L, below 0.5 mg/L or below 1 µg/L, the substance is considered to be insoluble in water.

Description of key information

The substance is considered to be insoluble in water.

Key value for chemical safety assessment

Additional information

The column elution method was applied for the determination of the water solubility of the substance in accordance with OECD 105 (1995), EU Method A.6 (2008) and according to GLP principles.

Chemical analysis was performed on Aluminium, Cerium, Magnesium and Terbium. With all test samples of both flow rates (and corresponding blanks) the response of the elements was below the element response of the lowest calibration solution (either below 0.1 mg/L, 0.5 mg/L or below 1 µg/L, based on the element). Based on this information, the substance is considered to be insoluble in water.