What is calcium carbonate used for in pottery? What is the use of calcium carbonate? What does calcium do in a glaze? Is there calcium carbonate in clay

CaCO₃ 

Calcium carbonate formula is a chemical compound with the formula CaCO3. 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 eggshells, gastropod shells, shellfish skeletons and pearls. 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.

Application of calcium carbonate in ceramics industry

Calcium carbonate is another main component in the production of ceramics. Calcium carbonate is an economical source of calcium oxide, which is needed as a melting agent at high temperatures, improves the mechanical and chemical strength of the glass body and reduces shrinkage from firing. Calcium carbonate improves the mechanical and chemical strength of the glass body and reduces shrinkage from firing.

Formula: CaCO₃
Molecular Weight: 100.0869 g/mol
Form: powder (white trigonal crystals)
CAS Number: 471-34-1
Density: 2.8 g/cm³
Synonyms: Aragonite, Limestone, Calcite, Chalk, Carbonic acid calcium salt, Aeromatt, Calofort U, Calciumcarbonat, Kalziumkarbonat