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Water solubility

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Description of key information

> 350 g/L at 20 °C, pH =7-7.1

Key value for chemical safety assessment

Additional information

In order to estimate the water solubility of the substance sulfuric acid, mono-C8-14 alkyl esters, ammonium salts, compds. with triethanolamine (CAS No. 96690-74-3), the experimental results obtained for sulfuric acid, mono-C8-14 alkyl esters, ammonium salts (CAS No. 90583-10-1) and for sulfuric acid, mono-C8-14 alkyl esters, compound with triethanolamine (CAS No. 85665-45-8) are used in a weight of evidence approach. The two read-across substances can be seen as complementary to each other, providing both counter ions present in the target substance. The measured minimum values are of similar order of magnitude (350 g/L for 90583-10-1 and 500 g/L for 85665-45-8) and it can be concluded that the target substance is miscible with water in any proportions and that its water solubility is higher than the lower of these values, i.e. 350 g/L. This value is accepted to be used for a chemical safety assessment.

The water solubility of the analogue substances was determined according to OECD Guideline 105 (flask method). Gel formation at minimum concentrations obtained was observed.

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