magnesium carbonate

noun

, Chemistry.

a white powder, MgCO 3 , insoluble in water and alcohol, soluble in acids, used in dentifrices and cosmetics, in medicine as an antacid, and as a refractory material.

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When ordinary methods do not suffice, it can usually be cleared by shaking up with a little magnesium carbonate and filtering.

Magnesium is an element, and is found in magnesium carbonate, a compound that is effective in correcting soil acidity.

In one form the jelly is impregnated with needles of magnesium carbonate (Schaudinn), but these are absent in the other form.

Limestone containing smaller amounts of magnesium carbonate is known as dolomitic limestone.

Like calcium carbonate, magnesium carbonate is insoluble in water, though easily dissolved by acids.

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