Calcium Carbonate
The main uses of Calcium Carbonate
I. Industrial Field
· Building materials: They are important raw materials for manufacturing cement, lime, glass, etc. Calcium carbonate is one of the indispensable components in cement production. In glass manufacturing, it can enhance the chemical stability and mechanical strength of glass.
· Plastic and rubber industry: As a filler added to plastics and rubber, it can increase the hardness, rigidity and dimensional stability of the products and reduce costs. If calcium carbonate is added to polyvinyl chloride (PVC) pipes and plates, their physical properties can be improved.
· Papermaking industry: It is used for coating and filling paper, which can enhance the whiteness, opacity and smoothness of paper, and improve the printing and writing performance of paper.
Ii. Food Industry: Used as a food additive, it is commonly employed as a leavening agent, acidity regulator, and nutrient fortifier. Adding calcium carbonate to flour can make bread softer and more delicious. In calcium-fortified foods, it is a good source of calcium supplementation.
Iii. Medical field: It can be used to prepare calcium supplements to help the human body replenish calcium and prevent and treat calcium deficiency diseases, such as rickets and osteoporosis. It can also be used as a drug excipient in the preparation of tablets, serving as a diluent, adhesive, etc.
Iv. Other Fields
· Coatings industry: As a extender pigment, it can improve the covering power, leveling property and washability of coatings, while reducing costs.
· Environmental protection field: It can be used to treat industrial wastewater, remove heavy metal ions and acidic substances in water, and play a role in purifying water quality.
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