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Slaking lime

Lime is slaked with water to form calcium hydroxide or hydrated lime (Ca[OH]2). Lime is used for a variety of purposes, including mortars and plasters in the building industry, in agriculture to lighten and improve soil in various ways, including reducing acidity and in a number of chemical and industrial processes.

  • Limestone = calcium carbonate (CaCO3) – the starting product
  • Lime = calcium oxide (CaO) – after burning
  • Quicklime = calcium hydroxide (Ca[OH]2) – after slaking in water.