The difference between slaked lime and quicklime is that the ingredients are different, the physical properties are different, and the reaction to water is different.
1, the composition is different
Lime, also known as burnt lime, the composition is calcium oxide, generally by the calcium carbonate as a component of the natural rock calcined at high temperature, can be decomposed into carbon dioxide and calcium oxide. The main component of slaked lime is calcium hydroxide, which is an inorganic compound.
2, different physical properties
Lime is white or gray, brownish-white, can absorb water and carbon dioxide in the air. Calcium oxide and water reaction to form calcium hydroxide and release heat, soluble in acidic water, insoluble alcohol. Slaked lime is a fine white powder at room temperature, slightly soluble in water, and solubility decreases with increasing temperature, soluble in ammonium salt and glycerol. And acid counter occurs corresponding calcium salts.
3, water reaction is different
Lime in the addition of water, there will be a violent reaction and boiling. Slaked lime is insoluble in water, will not produce any phenomenon.
Use of slaked lime
1, can be used as a filler, such as used as epoxy adhesive filler.
2, used as analytical reagents, gas analysis as a carbon dioxide absorber, spectral analysis reagents, high-purity reagents for semiconductor production in the epitaxial, diffusion process, laboratory ammonia drying and dehydration of alcohols.
3, used as raw materials, can manufacture calcium carbide, soda ash, bleaching powder, gray calcium, calcium hydroxide, light calcium carbonate and related calcium compounds.
4, can be used as metallurgical flux, desulfurization agent, acidic wastewater treatment and sludge tempering.
5, can be used as food, pesticides, medicine, vegetable oil decolorant, tanning, soil conditioner and calcium fertilizer.
6, can be used to prepare lime milk and refractory materials, papermaking, petrochemical additives.
7, used in construction materials, cement quick-setting agent, flux of fluorescent powder, desiccant.
1, stored in the cold room. Cover the bought beef with plastic wrap and put it in the refrigerator directly. This method is only applicable to the preservat