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Physical & Chemical properties

Water solubility

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Description of key information

The water solubility of MEXORYL SCK was determined to be > 531.9 g/L at 21.5°C and a pH of 5.7. Very soluble substance.

Key value for chemical safety assessment

Additional information

One GLP study was performed in order to determine the water solubility of MEXORYL SCK (also called MEXORYL SBT) according to a simplified flask method in accordance with OECD guideline No. 105, and the Council Regulation (EC) No. 440/2008 A.6.

During this study, the saturation concentration of MEXORYL SCK at room temperature (21.5 °C) was estimated. After mixing a total of 5 g of test item in 5 mL of water, a brown solution was obtained. Based on visual judgment the test item was completely dissolved. It was not possible to prepare a saturated solution, therefore, the water solubility of MEXORYL SCK might be higher as determined in the present study. The determination of the concentration in the above mentioned solution was confirmed by HPLC with respect to a calibration curve.During this study the water solubility of MEXORYL SCK was found to be > 531.9 g/L at 21.5 °C and a pH of 5.7.This study is consider as reliable without restriction.