Calcium Oxide Quicklime
Calcium Oxide Quicklime is a highly reactive inorganic compound, essential in construction and various industrial processes.
Description
Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely utilized chemical compound derived from the thermal decomposition of calcium carbonate (CaCO3) in a lime kiln, a process known as calcination. It is an alkaline, white crystalline solid at room temperature that is highly stable and soluble. A key characteristic of quicklime is its exothermic reaction with water, forming calcium hydroxide (Ca(OH)2), also known as slaked lime. This hydration process releases significant heat. Due to its strong basicity and high reactivity, quicklime serves as a fundamental building block and processing agent across numerous industries. Its high melting point and chemical stability contribute to its broad range of applications. The purity and specific physical properties of quicklime can vary depending on the raw material source and manufacturing process, influencing its suitability for different industrial requirements.
Applications
Calcium Oxide Quicklime is critically important in the construction industry as a primary material in lime mortar, plaster, and stucco, contributing to strength and durability. It is extensively used in steelmaking as a flux to remove impurities and in the production of paper, where it serves as a causticizing agent in the Kraft process. Other significant applications include water and wastewater treatment for pH adjustment and phosphorus removal, soil stabilization in civil engineering projects, and in various chemical manufacturing processes as a desiccant or basic reagent. It also finds use in agriculture for soil amendment and as an ingredient in certain animal feeds.
Storage & Handling
Store in a cool, dry, well-ventilated area, away from incompatible materials. Keep containers tightly closed to prevent moisture absorption. Avoid contact with skin, eyes, and clothing. Use appropriate personal protective equipment. Handle with care to prevent dust generation.
Danger
- H314 Causes severe skin burns
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