Calcium Compounds Marble

A common mineral consisting of crystallized calcium carbonate.

Calcium compounds marble.

Calcium oxide lime is an important compound with many uses. A major constituent of limestone. Calcium compounds rocks and minerals such as limestone and marble are also used in construction. Calcium is also a very important element in both plant and animal life.

Calcium constitutes 3 64 percent of earth s crust and 8 percent of the moon s crust and its cosmic abundance is estimated at 4 9 10 4 atoms on a scale where the abundance of silicon is 10 6 atoms. Calcium carbonate is a chemical compound with the formula ca co 3 it is a common substance found in rocks as the minerals calcite and aragonite most notably as limestone which is a type of sedimentary rock consisting mainly of calcite and is the main component of pearls and the shells of marine organisms snails and eggs calcium carbonate is the active ingredient in agricultural lime and. Limestone and marble have been mined as building materials and the oxide of calcium lime has been used in the preparation of mortar for centuries. Calcium calcium compounds.

As calcite calcium carbonate it occurs on earth in limestone chalk marble dolomite eggshells pearls coral stalactites stalagmites and the shells of many marine animals. Calcium carbonate obtained from its natural sources is used as a filler in a variety of products such as ceramics glass plastics and paint and as a starting material for the production of calcium oxide. Gypsum is used to make plaster of paris and drywall. Calcium chromate solubility is 170 g l and at 0 o c calcium hypo chlorate solubility is 218 g l.

Calcium phosphate solubility is 20 mg l and that of calcium fluoride is 16 mg l. Calcite is a crushed and screened white marble media which can inexpensively be used to neutralize acidic or low ph waters to a neutral less corrosive effluent. Solubility of other calcium compounds lies between the levels of these examples for example calcium arsenate 140 mg l calcium hydroxide 1 3 g l and calcium sulphate. It is a naturally occurring material.