Unslaked Lime
Item Name Code (INC) 04850
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The product resulting from the calcination of limestone, dolomite, shells, or other forms of calcium carbonate, capable of slaking with water. It consists essentially of calcium oxide naturally associated with more or less magnesium oxide.
Additional Information for Unslaked Lime
Unslaked lime, also known as quicklime or calcium oxide (CaO), is a white, caustic, alkaline crystalline solid. It is produced by heating limestone or seashells at a high temperature, a process known as calcination. Unslaked lime is highly reactive and can react vigorously with water, releasing heat and producing calcium hydroxide (slaked lime).
Unslaked lime has various applications, including:
1. Construction: It is commonly used in the construction industry for making mortar, plaster, and concrete. When mixed with water, it undergoes a chemical reaction to form calcium hydroxide, which acts as a binding agent.
2. Water treatment: Unslaked lime is used in water treatment processes to adjust the pH levels and remove impurities. It can help neutralize acidic water and precipitate dissolved metals and contaminants.
3. Agriculture: It is used in agriculture to improve soil quality and adjust pH levels. Unslaked lime can neutralize acidic soils, making them more suitable for plant growth. It also provides calcium, an essential nutrient for plants.
4. Chemical manufacturing: Unslaked lime is used in various chemical processes, such as the production of calcium carbide, which is used in the manufacturing of acetylene gas.
5. Environmental applications: It is used in environmental remediation projects to treat acidic mine drainage and neutralize acidic soils in land reclamation projects.
It is important to handle unslaked lime with caution as it is highly caustic and can cause burns or irritation to the skin, eyes, and respiratory system. Proper protective equipment, such as gloves and goggles, should be worn when working with unslaked lime.
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