Hydration of medium reactive industrial magnesium oxide with magnesium acetate |
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Authors: | E M van der Merwe Christiena Strydom A Botha |
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Institution: | (1) Department of Chemistry, P.O. Box 392, UNISA, 0003, South Africa |
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Abstract: | Medium reactive magnesium oxide reacts incompletely with available water to form magnesium hydroxide. To enhance the hydration
of medium reactive magnesium oxide, the effect of magnesium acetate as hydrating agent was studied. The extent to which different
parameters (concentration of magnesium acetate, solution temperature and solid to liquid ratio of MgO to magnesium acetate)
influence the hydration rate of a medium reactive industrial sample of magnesium oxide were evaluated. The degree of rehydration
measured as percentage Mg(OH)2being formed, increases from approximately 56% using 0.5 M magnesium acetate solutions at 25°C to 64% at 50°C, to more than
70% at 70°C. The major part of rehydration of the medium reactive MgO sample occurs within the first few minutes of the reaction
for all three temperatures studied.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | MgO TG rehydration magnesium acetate |
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