Lime powder: calcium carbonate as a main component of white powdery substance. Wide range of applications of lime block manufacturers, most commonly used in the construction industry, which is the industrial use of calcium carbonate; the other is food grade calcium carbonate lime block quote, as a common calcium supplements, is widely used. Calcium oxide Caution: Prolonged exposure to calcium oxide absorbs carbon dioxide into calcium carbonate powder form, would not achieve disinfection clear pond in the air. Therefore, the best are bought with lime, and the selection block light, free of impurities as well. If a used up the rest of the lime Zhakou sealed with a plastic bag.