alkaline earths

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Related to alkaline earth elements: Transition metals

alkaline earths

alkaline earths (ălˈkəlīn, –lĭn), oxides of the alkaline-earth metals, especially of calcium, strontium, and barium. They are not readily soluble in water and form solutions less basic than those of alkalies.
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The concentrations of the alkaline earth elements Mg and Ca in the protolith are close to those in the chemical composition of the UCC.
Unlike alkaline earth elements apatites, in lead apatites ([Pb.sub.10][(Z[O.sub.4]).sub.6][(OH).sub.2]), stereochemically active lone electron pairs experience repulsive forces from [OH.sup.-] ions, located in the structural channels.
In wood ash, alkaline and alkaline earth elements are primarily present as oxides, hydroxides, or carbonates, but also as chlorides [14,15].
3) the column is washed with buffer to remove the alkali and alkaline earth elements;