Calcium Carbonate E170
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CALCIUM CARBONATE
Molecular formula: CaCO3
CAS No.: 471-34-1
Synonyms: Calcite Pulverised limestone, Chalk, Calcite
Form: solid, powder
Color: white-gray
Calcium carbonate content (purity): min. 97%
Precipitated calcium carbonate is a salt of carbonic acid and calcium. It room temperature, it occurs mainly as a white, crystalline substance or a powder that does not dissolve in water. In nature, it is widely distributed as a default ingredient in many minerals and sedimentary rocks. Calcium carbonate is a raw material with a wide industrial use.
USES:
- Manufacture of lime and cement;
- Purification of Iron from iron ore in a blast furnace;
- Filtercake agent in drilling industry;
- Added to drilling fluids to increase their density;
- An extender in paints;
- For the production of powder extinguishers;
- Used in the manufacture of disposable nappies;
- Manufacture of fillers, putty, adhesives and sealants;
- Whiting in ceramics;
- Manufacture of glass;
- As an abrasive in scouring creams and scouring powders;
- In fertilisers as a source of calcium and stabilising soil acidity;
- As passive fire protection in hazardous environments;
- Source of alkalinity used for flue gas desulphurisation in power stations;
- As a filler for the production of rubbers, paper, toothpaste, putty, acrylic paints, plastics (PVC, PP, PE) or school chalk;
- For the treatment of wastewater and industrial water, (increasing the pH of the water to more alkaline), softening water, i.e. removing calcium, magnesium salts and multivalent metals.