Quicklime, also known as calcium hydroxide, has the chemical formula Ca(OH)₂ and is a white, powdery solid. It is slightly soluble in water, and its aqueous solution is called limewater.
Quicklime has a wide range of uses. In the construction industry, it is a common building material used for bricklaying and plastering. In agriculture, it can reduce soil acidity, improve soil structure, and control pests and diseases. In environmental protection, it can be used as a neutralizing agent to treat acidic wastewater and wastewater containing heavy metal ions, adjusting the pH value to precipitate and remove heavy metal ions. In chemical production, it is a raw material for preparing bleaching powder and many other chemical products. However, it is corrosive, and protective measures must be taken when using it.
Product Introduction:
Quicklime, also known as calcium hydroxide (Ca(OH)₂), is an important inorganic compound. It is a white powder or crystalline solid with a density of 2.24 g/cm³ and a melting point of 580°C (decomposes). It is slightly soluble in water, forming an alkaline solution called limewater, and is insoluble in alcohol. In air, quicklime readily absorbs carbon dioxide to form calcium carbonate (CaCO₃). It can also react with acids to produce the corresponding calcium salts and water. At high temperatures, it decomposes to form calcium oxide (CaO) and water.
Product Advantages:
Strongly alkaline: It can neutralize acidic substances and is used for amending acidic soils, treating acidic wastewater, and adjusting pH levels.
Disinfection and preservation: It has strong bactericidal and anti-corrosive properties, and can be used for surface disinfection, as well as for preventing and controlling crop diseases and pests.
Good binding properties: In the construction industry, it serves as a primary component of mortar and plaster, offering excellent workability and adhesion, which helps bond bricks more securely.
Widely available and low-cost: It can be produced by calcining limestone to generate calcium oxide (quicklime), followed by slaking the quicklime. The raw materials are abundant, and the production process is relatively simple.
Service Industries:
Construction industry: Used as a primary component in mortar and plaster for wall rendering and foundation stabilization; it can also be mixed with sand for bricklaying.
环保领域：用于污水处理，中和酸性废水，去除重金属离子；在烟气脱硫中用于去除二氧化硫。
Agriculture: Used to amend acidic soils and raise soil pH to promote plant growth; also applied in controlling crop diseases and pests, such as in the preparation of Bordeaux mixture.
Chemical industry: Used in the production of chemical products such as bleaching powder, calcium chloride, and calcium nitrate; also employed in the sugar industry for purifying syrup.
Daily life: Used for disinfecting floors, such as in rural pigsties; applied in preserving eggs; and also serves as an ingredient in the production of century eggs (preserved eggs).
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