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Physical & Chemical properties

Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 July 2016 to 01 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
flask method
Specific details on test material used for the study:
- Purity: 96.6%
- Description: yellow viscous liquid
Key result
Water solubility:
0 g/L
Conc. based on:
test mat.
Temp.:
20 °C
Remarks on result:
other: The pH of each solution was measured.

A suitably specific method of analysis was not obtainable for the test item therefore the analysis was performed on the basis of the zinc content of the test item solutions using ICP-MS.

The preliminary water solubility test indicated that the column elution method should have been performed as the solubility was less than 1x10-2 g/L. However, due to the physical nature of the test item, it was not possible to use this method; experience has shown that liquid test items coated onto glass beads cause these beads to adhere together forming a plug within the column and thus preventing water circulation.

On completion of the equilibration period, the samples were clear and colorless with excess test item present in the test vessels. The solutions were decanted, avoiding excess test item prior to centrifugation. After centrifugation, the supernatant was taken for analysis. The supernatant was visually observed to be clear/colorless and free from un-dissolved test item.

Conclusions:
Under the conditions of the study, the water solubility of the test item as been determined to be less than 8.6 x 10^-5 g/L of solution at 20.0 ± 0.5 °C.
Executive summary:

Under the conditions of the study, the water solubility of the test itemas been determined to be less than 8.6 x 10-5g/L of solution at 20.0 ± 0.5 °C,using the flask method, designed to be compatible with Method A.6 Water Solubility of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 105 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 and Method 830.7840 of the OCSPP Guidelines, March 1998.

Description of key information

Under the conditions of the study, the water solubility of the test itemas been determined to be less than 8.6 x 10-5g/L of solution at 20.0 ± 0.5 °C,using the flask method, designed to be compatible with Method A.6 Water Solubility of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 105 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 and Method 830.7840 of the OCSPP Guidelines, March 1998.

Key value for chemical safety assessment

Water solubility:
0 g/L
at the temperature of:
20 °C

Additional information