Calcium Carbonate

Calcium carbonate is a chemical compound with the formula CaCO₃. It is a common substance found in rocks as the minerals calcite and aragonite. It is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. It is an essential mineral in the formation of bones and teeth in vertebrates. It is also used as a dietary supplement and in the production of materials such as cement, lime, and marble.

Properties of Calcium Carbonate:

• Chemical Formula: CaCO₃
• Molar Mass: 100.0869 g/mol
• Appearance: White solid
• Solubility: Insoluble in water
• Crystal System: Trigonal
• Hardness: 3 on the Mohs scale

Uses of Calcium Carbonate:

1. As a dietary supplement for calcium
2. In the production of cement and lime
3. In the manufacturing of paper, plastics, and paints
4. In the treatment of acid soils in agriculture
5. In the production of toothpaste and antacids

Study Guide:

To understand calcium carbonate better, consider focusing on the following key points:

1. Chemical structure and formula of calcium carbonate
2. Physical properties such as appearance, solubility, and crystal system
3. Common sources and occurrences of calcium carbonate in nature
4. Biological importance of calcium carbonate in marine organisms and vertebrates
5. Industrial and commercial uses of calcium carbonate

By mastering these points, you will gain a comprehensive understanding of calcium carbonate and its significance in various fields.

Good luck with your studies!