Calcium carbonate has numerous applications, including:
1. **Construction Industry**:
- Used as a building material (limestone) and in cement production.
2. **Agriculture**:
- Acts as a soil conditioner and pH regulator to enhance crop growth.
3. **Food Industry**:
- Serves as a calcium supplement and food additive (E170) for fortification.
4. **Pharmaceuticals**:
- Used as an antacid and dietary calcium supplement in various formulations.
5. **Industrial Applications**:
- Employed as a filler in products like plastics, paints, and paper to improve texture and opacity.
6. **Water Treatment**:
- Utilized to adjust acidity in water treatment processes.
These applications highlight calcium carbonate's versatility and importance in various sectors.