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Description

Calcium carbonate is
an inorganic chemical compound with the chemical formula CaCO3.

Calcium carbonate is one of the most popular chemicals which is
first encountered in school classrooms, where the use of chalk (a form of CaCO₃) is
found. It is found in the earth’s crust.  It is also found in many forms
such as marble, limestone, etc. Although
they are available in various forms they are chemically similar and only differ
physically. They are also referred to as calcite.

Calcium carbonate is a non-toxic and odourless compound commonly
found as a white mineral which occurs naturally in chalks, limestones and
marbles.

1. Ground Calcium Carbonate –
   Produced via extraction and processing of naturally occurring deposits.
   GCC crystal shape is irregularly rhombohedral and has a broader size
   distribution.


2. Precipitated Calcium Carbonate – Produced via chemical precipitation via a
   carbocation process or as a by-product of some bulk chemical processes.
   PCC crystal shape depends on the product and the product and the particles
   are more uniform and regular with a narrow size distribution.

Paper, Plastics, Paints, and Coatings: Calcium carbonate is the most widely used mineral in the paper, plastics, paints and coatings industries both as a filler – and due to its special white color -
as a coating pigment.

Lauded among many
industries for its use, calcium carbonate is a key player in the following
industries:

·        
Healthcare.

·        
Oil.

·        
Plastic/Rubber.

·        
Cement.

·        
Glass.

·        
Steel.

·        
Paper.

·        
Construction.