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Physical & Chemical properties

Water solubility

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Description of key information

water solubility of the test material: less than 1.0 x 10e-3 g TOC/I of solution at 20.0 ± 0.5°C [monitoring the total organic carbon (TOC) content of the sample solutions]

Key value for chemical safety assessment

Additional information

The water solubility determination was carried out using the flask method, Method A6 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

Due to the test material being a complex mixture of hydrocarbons, and it also being essentially insoluble in water, analysis of the sample solutions was performed monitoring the TOC content of the sample solutions only.

The preliminary water solubility test indicated that the column elution method should have been performed as the solubility was less than 1 x 10-2g/l. However, due to the physical nature of the test material, it was not possible to use this method; experience has shown that liquid test materials coated onto glass beads cause these beads to adhere together forming a plug within the column and thus preventing water circulation.

The water solubility of the test material was determined to be less than 1.0 x 10-3 g TOC/l of solution at 20.0 ± 0.5°C monitoring the total organic carbon (TOC) content of the sample solutions.