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Solubility Patterns

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Publication 95009

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The alkaline earth metals are so-named because their oxides are highly basic (alkaline) and because they occur abundantly on Earth. Alkaline earth metal compounds—carbonates, sulfates, silicates—are abundant in minerals like dolomite (calcium and magnesium carbonate), epsomite (magnesium sulfate) and baryte (barium sulfate). The solubility of these compounds varies widely depending on the metal cation. Are there any patterns or periodic trends in the solubility behavior of alkaline earth metal compounds?