Registration Dossier
Registration Dossier
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EC number: 234-319-3 | CAS number: 11097-59-9
Water solubility
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.
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