Chemical database: 29. Calcium hydroxide

Calcium hydroxide (Ca(OH)2), also known as slaked lime, is a common inorganic compound that comes in form of a white powder. Density = 2.21 g/cm3. Melting point = none (decomposes at 512°C). Boiling point = none. This compound has many uses - it is used as a flocculant in water treatment, as a common chemical reagent, as a ingredient in the production of various construction materials, as a supplement, in metallurgy and in various other branches of industry.

Calcium hydroxide (slaked lime) can be found in large bags or buckets at stores that sell construction materials and equipment. It can also be obtained by a reaction of calcium oxide with water, which also produces a lot of heat. Alternatively, if higher purity is desired, it can be produced by mixing aqueous solutions of calcium chloride and sodium hydroxide, or ordered from chemical selling companies.