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Question:

What color is limestone?

What color is limestone?

Answer:

Limestone is the main raw material in the production of quicklime. Carbon dioxide (CO2) to clarify lime (CaOH2) becomes muddy. Lime and limestone used as building materials, it is also an important raw material in many industries. The limestone can be directly processed into stone and fire into lime.
Processing Limestone burn into pure calcium carbonate powder, filler for rubber, plastic, paper, toothpaste, cosmetics etc. made of lime and caustic soda lime, used as a CO2 absorbent. Lime as desiccant and disinfectant. Agriculture, with lime lime sulfur mixture preparation, Bordeaux soil and other pesticides. Shoushihui can neutralize acidic soil, improve the soil structure, the supply of plant calcium. With lime brush trunk, can protect the trees.
Lime lime and hydrated lime. The main components of the lime is CaO, the general is massive, pure white, containing impurities as a light gray or yellow. Lime to absorb moisture or water will become lime, lime is slaked lime, it is the main component of Ca (OH) 2. Lime deployment into lime, lime and lime mortar, used as coating materials and tile adhesive. Cement limestone and clay is mixed by high temperature calcination. The glass is composed of limestone, quartz sand, soda ash and other mixed by high melting. Iron with limestone as flux, used to remove gangue. Lime as slagging material in steelmaking, removal of sulfur, phosphorus and other harmful impurities. Calcium carbide (mostly CaC2) is lime and coke reaction in the furnace. Soda ash with limestone, salt, ammonia and other materials through multi-step reaction process (Solvay process) using lime. Caustic soda and reaction made (causticizing method). Using pure hydrated lime and chlorine bleaching of reaction. Made of calcium chloride, calcium nitrate, calcium sulfate and calcium salt by important chemical processing of limestone. To remove water of lime used as temporary rigid, water softener.

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