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nature : also known as quicklime (quicklime). The major components of calcium oxide CaO. Pure white, containing impurities of pale gray or pale yellow. General into massive, and sometimes into powder, it is extremely difficult melt. Due to strong heat at a bright light, said the lime light (lime light). Chemical industry for the manufacture of calcium carbide, caustic, bleaching powder, also for the tannery, metallurgy, and waste water treatment, construction, agriculture and so on. Limestone can be placed and calcined lime kiln were obtained.
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