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Physical & Chemical properties

Water solubility

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Description of key information

The water solubility of (3-Ammonio-4-methoxyphenyl)(2-hydroxyethyl)ammonium sulphate was 81.9 g/L at 20 °C and a pH value of 2.03, measured by flask method (OECD 105). The test item is considered as very soluble (> 10 g/L).

Key value for chemical safety assessment

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

Additional information

The water solubility of (3 -Ammonio-4 -methoxyphenyl)(2 -hydroxyethyl) ammonium sulphate was determined following the OECD guideline 105 (flask method) and the GLP.

The test substance was added to double distilled water (15 g/30 mL). The test solutions were pre incubated at 30 ± 0.5 °C with constant stirring at 300 rpm. After 24, 48 and 72 hours flasks were reduced to test temperature (20±0.5°C) with stirring at 100 rpm. Samples were taken 24 hr after transfer to the test temperature and analyzed by HPLC on a reversed-phase column with UV-detection.

The water solubility of test item was 81.9 g/L at 20 °C and a pH value of 2.03, measured by flask method.