Wednesday, July 13, 2011
What is the solubility of magnesium sulfate TS mixed with potassium carbonate TS?
Magnesium suflate (aka Epsom salt) is not very soluble in water. When combined with the carbonate ion from potassium carbonate, Mg2+ will precipitate as the even less soluble MgCO3, leaving sulfate ion in solution. This would hamper the dissolving of any more MgSO4 since now there is a common ion in solution.
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