Industrial and Agricultural Uses of Calcium Hydroxide

uses of calcium hydroxide

Before we delve into the various uses of calcium hydroxide, we shall first of all explain what is chemical compound is and the kind of chemical reactions it undergoes. Calcium hydroxide, Ca(OH)2  also known as slaked lime is manufactured by heating limestone to a high temperature of about 1000C and then adding water to the calcium oxide. Calcium hydroxide is slightly soluble in water; it is an alkaline solution and is known as lime water. Calcium hydroxide is a strong base. It neutralizes acids and displaces ammonia from ammonium salts and decomposes on heating to give the oxide.



                Uses of Calcium Hydroxide

Calcium hydroxide is of great importance to chemist, engineers, agriculturists, biologists and engineers. This compound has found several uses in industrial production processes and in the laboratory. Some of the uses of calcium hydroxide are enumerated below.

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  1. Calcium hydroxide otherwise known as slaked lime is a cheap alkali commonly used in treating acidic soils.


  1. A suspension of calcium hydroxide in water, known as milk of lime, is used as white wash. Lime water is used as a test for carbon(IV) oxide in the laboratory.


  1. Bleaching powder is manufactured by passing chlorine over moist calcium hydroxide.


  1. Calcium hydroxide is used to recover ammonia from ammonium chloride in the Solvay process. It is commonly used in the laboratory preparation of ammonia.


  1. Temporarily hard water is softened by the addition of calcium hydroxide.


  1. Mortar is prepared by mixing one part of slaked lime and three parts of sand with water. The mixture hardens or sets to bind the grains of sand by reacting with the carbon(IV) oxide in the atmosphere to form the trioxocarbonate(IV). Mortar is used to bind the bricks in walls and buildings.


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                Ca(OH)2(s)  + CO2(s)    →  CaCO3 + H2O(l)

As technology grow and as new demands for industrial chemicals increase, Calcium hydroxide would continue to be useful in several organic and inorganic chemical applications both for engineers, students and researchers.


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About the Author

Tony Onwujiariri
Tony is an Avid Tech enthusiast that loves Scientific Inventions and Tech Products. He blogs Passionately on Science and Technology related niches and spends most of his time on Research in Content Management and SEO. Tony loves Sugar and has been in love with Don Williams since he was a toddler on Diapers.

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Industrial and Agricultural Uses of Calcium Hydroxide

by Tony Onwujiariri time to read: 1 min