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Physical & Chemical properties

Storage stability and reactivity towards container material

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Description of key information

The corrosion rate of aluminium and steel at 55 °C test temperature by aqueous solutions of calcium hydroxide is lower than 6.25 mm/year, thus the test material is non-corrosive to metal surfaces.

Additional information

Non-corrosive to metal surfaces.

Since alkalinity is the driving factor for reactivity of the substance towards container materials and alkalinity of calcium magnesium oxide and calcium hydroxide is equivalent (the pH of a saturated aqueous solution of calcium magnesium oxide and calcium hydroxide have been determined at 12.4 (see water solubility, O'Connor and Woolley, 2010 and Fox, 2010b), the results of this study can be considered relevant also for calcium magnesium oxide.