Registration Dossier

Physical & Chemical properties

Water solubility

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Study on Magnesium-Aluminium-Hydroxide-Carbonate performed according to OECD 105 and GLP guidelines.

Key value for chemical safety assessment

Water solubility:
0.009 mg/L
at the temperature of:
20.4 °C

Additional information

The solubility of the test substance in double distilled water at neutral pH and 20.4 was determined to be < 9*10-6 g/l. The pH was measured to be 7.4-7.7.

The solubility of the test substance in HCL/KCL buffer solution pH 1.3 at 38.9 ºC, studied in a nominal 50 g/l test solution, was determined to be <0.035 g/l based on analysis of aluminium. Probably aluminium precipitated as a consequence of an increase of pH to 5.5.

When the test substance was dissolved/dissociated in HCL/KCL buffer solution pH 1.3 at 37 ºC at a nominal concentration of 1.0 g/l, the pH remained stable at 1.6, and aluminium remained in the solution.

Based on these results, the exact solubility of the test substance at pH 1-2 could not be determined, but is > 1 g/l.