Content: silica 0.07-1%, alumina trioxide 0.02-1%, ferric oxide 0.03-1%, calcium oxide 48-55.22%, magnesium oxide 0.08-1%. Limestone block/powder: loss on ignition of 40.79%, silicon 4.62%, aluminum 1.21%, iron 0.52%, calcium 50.16%, magnesium 1.10%. Dolomite powder/block: silicon 0.19%, aluminum 0.15%, iron 0.17%, calcium 32.1%, magnesium 21.19%. Calcium carbonate is a major component of limestone, which is made of glass. The main raw material of natural calcium carbonate. Lime and limestone are used extensively as building materials and are important raw materials for many industries. Calcium carbonate can be directly processed into stone and fired into quicklime. Lime has quicklime and slaked lime. The main component of quicklime is CaO, which is generally in the form of a block, pure white, and pale gray or yellowish when it contains impurities. Quicklime absorbs moisture or adds water to become hydrated lime. Slaked lime is also called slaked lime. Its main component is Ca(OH)2. The slaked lime is formulated into a lime slurry, a lime paste, a lime mortar, etc., and is used as a coating material and a tile adhesive. The cement is prepared by mixing limestone and clay and calcining at a high temperature. The glass is mixed by limestone, quartz sand, soda ash, etc., and is obtained by high temperature melting. Ironmaking uses limestone as a flux to remove gangue. The steelmaking uses lime as a slag-forming material to remove harmful impurities such as sulfur and phosphorus. Calcium carbide (mainly CaC2) is produced by reacting quicklime and coke in an electric furnace. Soda ash is obtained by multi-step reaction using limestone, salt, ammonia and other raw materials (Solva method). Caustic soda (caustic method) is prepared by reacting slaked lime with soda ash. Bleaching is achieved by the reaction of pure hydrated lime and chlorine. The limestone is chemically processed to form important calcium salts such as calcium chloride, calcium nitrate and calcium sulfite. Slaked lime removes the temporary hardness of water and acts as a hard water softener. Limestone is processed into pure powdered calcium carbonate, which is used as a filler for rubber, plastic, paper, toothpaste, cosmetics, etc. Soda lime made from lime and caustic soda, used as an absorbent for carbon dioxide. Quicklime is used as a desiccant and disinfectant. In agriculture, lime, sulfur mixture, Bordeaux mixture and other pesticides are prepared with quicklime. The application of slaked lime in the soil neutralizes the acidity of the soil, improves the structure of the soil, and supplies the calcium required for the plant. Protect the trees by brushing the trunk with lime. SHAOXING ZHENGHONG AUTO PARTS CO.LTD , https://www.kontinental-bearing.com