White powder or colorless crystals, odorless, tasteless, noncombustible, very slightly soluble in water, soluble in acids with evolution of carbon dioxide.
USE:
Source of lime; neutralizing agent, filter and extender in rubber, plastics, paints; opacifying agent in paper; fortification of bread; putty; tooth powders; antacid; whitewash; Portland cement; sulfur dioxide removal from stack gases;