Limestone is commonly used in the construction site of the material, with the limestone after the high-rise buildings can be more stable, often used in industry limestone, limestone use is very wide. Limestone is a natural formation of the items, it is distributed in many areas of our country, if you want to buy limestone, then directly in the limestone origin of the purchase price will be cheaper.
The main component of limestone is calcium carbonate. The limestone can be turned into lime by firing. The chemical composition of lime is calcium oxide, the appearance of block, the color is light gray or light yellow, usually with some impurities. Slaked lime is also the lime, is another kind of limestone, it is formed by the lime tide or water after the formation. The main lime is calcium hydroxide.
In addition, the limestone also has silica, aluminum oxide, calcium oxide, magnesium oxide, magnesium, iron, loss of ignition and other ingredients.
The use of limestone
Manufacture of glass. Glass production materials are limestone, quartz sand, soda ash, etc., these materials can be obtained after high temperature melting.
Refining steel. In industrial production, limestone or iron melting solvent and runner, where the use of lime, the use of quicklime can be used as slagging materials, filter out sulfur, phosphorus and other harmful work.
Rubber, plastic, paper, cosmetics, toothpaste and other products filler. After firing the limestone, it becomes a pure, dry powdered calcium carbonate, which can be used as a filler for many products.
Manufacture soda ash. Soda is the use of limestone, salt, ammonia and other materials using Solvard method, after a multi-step reaction and obtained by pure lime and chlorine chemical reaction to achieve bleaching.
Making salt. Limestone after chemical processing, can become calcium chloride, calcium nitrate, calcium sulphate and other calcium salts.
Hard water softener. The hydrated lime can be temporarily removed from the hardness of the water, and thus is used as a hard water softener in the industry.
Desiccant and disinfectant.
Application in Agriculture. First, the lime can be configured as Bordeaux liquid, lime sulfur mixture and other pesticides; Secondly, hydrated lime can change the soil pH, improve the internal composition of the soil, add calcium in the soil; then, lime slurry can be used to paint the trunk, Protect the trees.
Building houses and decorations. Limestone is the main raw material for making cement. In addition, limestone can come to build the external walls of the house and the ground.
Engaged in mining workers often appear on the upper respiratory tract inflammation, bronchitis, may be associated with emphysema. X-ray showed lymph node calcification, enhanced lung texture. Work workers suffering from pneumoconiosis mainly with the goods contained in the impurities related to silica.
Isolated from contaminated areas, restricted access. It is recommended that emergency personnel wear dust masks (full cover) and wear general work clothes. To avoid dust, carefully swept away, placed in the bag transferred to a safe place. If a lot of leakage, covered with plastic cloth, canvas. Collected or transported to waste disposal sites.