What type of oxide is calcium oxide

It is also used in water and sewage treatment to reduce acidity , to soften, as a flocculant , and to remove phosphates and other impurities; in paper making to dissolve lignin , as a coagulant , and in bleaching ; in agriculture to improve acidic soils ; and in pollution control, in gas scrubbers to desulfurize waste gases and to treat many liquid effluents. It has traditionally been used in the burial of bodies in open graves, to hide the smell of decomposition, as well as in forensic science, to reveal fingerprints.

It is a refractory and a dehydrating agent and is used to purify citric acid , glucose , dyes and as a CO 2 absorber. It is also used in pottery , paints and the food industry. Furthermore, quicklime is used in epidemics, plagues, and disasters to disintegrate bodies in order to help fight the spread of disease. CaO is a key ingredient in the nixtamalization process used to create corn hominy and masa or tortilla dough.

A relatively inexpensive substance, CaO produces heat energy by the formation of the hydrate, as in the following equation: [3]. Hyderabad, Telangana. Jodhpur Village Hariyadhana, Jodhpur - , Dist. Jodhpur, Rajasthan. Navsari, Gujarat. Udaipur, Rajasthan. Kummaripalem, Piduguralla, Dist. Guntur, Andhra Pradesh.

Road, Andheri East, Mumbai - , Dist. Nashik Plot No. Nashik, Maharashtra. Jaipur, Rajasthan. Katni, Madhya Pradesh. Kandivali West, Mumbai Office No. Verified Supplier. Thoppukadu, Salem No. Salem, Tamil Nadu. Pipar, Dist. Jodhpur K No. Jodhpur Bera Pipaliya , N. Quicklime has a high attraction for water and is a more effective desiccant than silica gel. Chemical Properties :. Quick lime forms slaked lime or lime water on hydration. When water is added to lime it becomes hot and cracks to form a white powder.

This is known slaking of lime. Calcium oxide is a basic oxide which can react with acids and give calcium salts. It forms silicates and phosphates with acidic oxides like silicon dioxide and phosphorus pentoxide. This property will make lime useful as a flux in metallurgy which removes impurities. Properties of Quick Lime :. Lime is a white shapeless or amorphous solid. It is extremely stable and even fusion cannot decompose it.

Solubility :. In water: Reacts with water to produce calcium hydroxide. In Acids: It also soluble in acids. In Alcohols: it is insoluble in alcohol. In Organic: soluble with most of organic solvents. Uses of Lime:. Lime is used for medicinal purposes, plant, insecticides and animal food. It is also used as a laboratory reagent for gas absorption, dehydration, and precipitation etc.

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