Calcium carbonate is an inorganic compound.

The concept of calcium carbonate:

Calcium carbonate is an inorganic compound represented by the chemical formula CaCO?. It is a compound composed of a calcium ion (Ca?) and a carbonate ion (CO).

Calcium carbonate is very common in nature and is found in various forms of minerals and rocks, such as marble, limestone, coral, seashells, and oyster shells. It can also be produced commercially, either synthetically or extracted from minerals.

Chemical properties:

Chemically, calcium carbonate is a white powder, odorless, slightly soluble in water. It has a certain alkalinity and will generate carbonate ions (HCO?) and hydroxide ions (OH?) in water, making the solution alkaline. When calcium carbonate is heated, it breaks down into carbon dioxide gas and calcium oxide.

Applications of calcium carbonate:

1. Building materials

As a filler and additive, calcium carbonate is often used in building materials such as cement, gypsum and concrete. in to increase strength, hardness and durability.

2. Food industry

Calcium carbonate is a common food additive used to adjust acidity, increase taste and stability. It is widely used in food manufacturing processes such as flour, bread, biscuits, dairy products, condiments and beverages.

3. Medical field

Calcium carbonate can be used as a calcium supplement to treat calcium deficiency or osteoporosis. It is also commonly used as a filler in tablets or capsules to aid in the preparation of dosage forms.

4. Plastic and rubber industry

Calcium carbonate is widely used in the production of plastic and rubber products to improve their physical properties, increase hardness and enhance tensile strength.

5. Paper industry

Calcium carbonate is often used as filler and coating in the papermaking process to increase the gloss, whiteness and printing quality of the paper.

6. Ceramics and Glass Industry

Calcium carbonate can be used to prepare ceramic and glass materials, providing physical stability and improving material properties.

7. Environmental Protection

Calcium carbonate is widely used in sewage treatment and wastewater treatment processes to adjust pH and remove heavy metal ions.

8. Agriculture and feed industry

Calcium carbonate is used as a soil conditioner in the agricultural field to adjust soil pH and provide calcium needed by plants. It is also used as a calcium supplement in the feed industry for animal growth and healthy development.