Calcium hydroxide is widely used in water treatment processes to adjust pH levels and soften water by removing impurities. In construction, it is a key component in mortar and plaster, providing binding properties and improving workability. It is also utilized in the food industry as a firming agent and pH regulator, particularly in products like pickles and corn tortillas. In agriculture, it serves as a soil amendment to neutralize acidic soils and enhance crop growth. Additionally, calcium hydroxide is employed in dentistry for its antimicrobial properties and in root canal treatments to disinfect and fill cavities. It also plays a role in waste treatment by stabilizing sludge and reducing odors.