why cao is called quicklime

It is a white, caustic, alkaline, crystalline solid at room temperature. 29 30 31. It is used in the steel industry to remove acidic impurities, in air-pollution control to remove acidic oxides such as SO2, and in water treatment. chemical compound, CaO, a colorless, cubic crystalline or white amorphous substance. Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. [I hope help] Quick lime is an amorphous white solid with a high melting point of 2600 ° It is a very stable compound and withstands high temperatures. Calcium oxide (CaO), also called quicklime, is an important component in cement and soda-lime glass. calcium oxide, chemical compound, CaO, a colorless, cubic crystalline or white amorphous substance. There are a wide range of uses for this substance, ranging from mortar to flux, and it has been used by humans for centuries. Calcium Oxide reacts with … This is because the magnesium in the dolomite acts as the main reactive agent for the elimination of silica. Asked by Wiki User. This was how the material, also known as quicklime, was acquired for human use, after ancient peoples burned limestone in a kiln to take advantage of its structural properties. Calcium Oxide is also called Quicklime (when water is added, it heats up and bubbles like it’s boiling, make it seem alive. Wiki User Answered . Lime is a term that includes calcium oxide (CaO, also called quicklime) and calcium hydroxide [Ca(OH)2 also called slaked lime]. Quicklime, more formally known as calcium oxide (CaO), is a caustic alkaline substance that is produced by heating limestone in specially designed kilns. Calcium oxide is used industrially as an absorbent, in the creation of steel, in fertilizer, as a water softener and as a potential hydrogen (pH) regulator for wastewater. 2010-09-12 16:39:43 2010-09-12 16:39:43. Why is calcium oxide called quick lime? It is prepared by heating Properties of Calcium Oxide. At room temperature, CaO will spontaneously absorb carbon dioxide from the atmosphere,… In the presence of water, it forms slaked lime. CaO+H 2 O → Ca (OH) 2. It is also called lime, quicklime, or caustic lime, but commercial lime often contains impurities, e.g., silica, iron, alumina, and magnesia. Calcium oxide, a common chemical compound that appears as a white crystalline solid at room temperature, is easily attainable through the thermal decomposition of limestone. Heating up calcium carbonate drives out carbon dioxide, leaving Calcium Oxide. Other articles where Calcium oxide is discussed: calcium: Compounds: Calcium oxide, CaO, also known as lime or more specifically quicklime, is a white or grayish white solid produced in large quantities by roasting calcium carbonate so as to drive off carbon dioxide. The use of quicklime and slaked lime is much less common. Quicklime is produced by heating naturally-occurring limestone rock, which contains calcium carbonate. Calcined dolomite (CaO MgO), can also be used in water treatment plants, for example to eliminate silica from water. “Quick” used to be used in a sense that meant alive, as in the “quick and the dead”.) Calcium Oxide. This process is called the slaking of lime. Problem 137P. It appears as a white powder when cold, and yellow when heated. Calcium has an ionic radius of 0.099 nanometers (nm), and oxygen has an ionic radius of 0.14 nm. ... Calcium oxide that survives processing without reacting in building products such as cement is called free lime. Answer. Top Answer. Calcium oxide, more often known as quicklime, is a high-volume chemical used in many industries.This is because calcium oxide has many uses, is inexpensive and is easy to create. It is also called unslaked Lime. Quicklime is a caustic compound known by its chemical name calcium oxide (CaO).