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What is CALCIUM CARBONATE

The literal meaning of the term “calcium carbonate” is a salt found in its natural state as chalk or calcite or aragonite or limestone”. Calcium carbonate is a colorless or white crystalline compound found in natural form as chalk, limestone, marble and others. The chemical name of calcium carbonate is CaCO3 and it is used in a range of manufactured products, such as commercial chalk medicines, and dentifrices. CaCO3 is a common non-siliceous material found in three basic crystal forms: calcite, aragonite, and vaterite. Every crystal form can be further broken up into different crystal morphologies.

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 organismssnails, and eggs. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale. It is medicinally used as a calcium supplement or as an antacid, but excessive consumption can be hazardous and cause poor digestion.

(https://en.wikipedia.org/wiki/Calcium_carbonate)

Calcium carbonate Processing

Calcium carbonate is processed using various wet and dry grinding methods for industry applications. In addition, other different processing processing techniques such as flotation, optical sorting as particle size classifying are also used in order to get high level of brightness and low abrasion properties. Calcium carbonate is processed based upon the purity level required. The product is unique blend of high brightness, whiteness, and low reactive and hardness properties.

Calcium carbonate ore processing results in smaller size products with enhanced properties.The calcium carbonate material passes through various processing stages right from drilling, crushing, washing, refining, grinding to sorting and classifying stages to offer a highly engineered filler that meets the customer’s requirements.

The processing of calcium carbonate to varying degrees of purity enables it to exhibit an attractive combination of high whiteness and brightness, and low hardness and reactive properties. Calcium carbonate is used by paper, plastic, paint, rubber and chalk producers as a means to improve quality and lower manufacturing cost.

Physical Properties of Calcium Carbonate

. Chemical formula: Caco3

. Physical Appearance: white solid

. Formula weight: 100.1 amu

. Density: 2.7 g.m3

.Crystal Structure: calcite, aragonite or vaterite

. Mohs’ hardness: 3

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