It is prepared by heating calcium carbonate (e.g., limestone) in a special limekiln to about 500°C to 600°C, decomposing it into the oxide and carbon dioxide.
Calcium oxide is widely used in industry, e.g., in making porcelain and glass; in purifying sugar; in preparing bleaching powder, calcium carbide, and calcium cyanamide; in water softeners; and in mortars and cements.
In agriculture it is used for treating acidic soils (liming).
agricultural lime(Site not responding. Last check: 2007-11-03)
The Agricultural Lime Association (ALA) is the trade association for the UK agricultural lime industry, representing the interests of nine member companies …
Used in light doses associated with agricultural lime application rates, LimeKiln Dust is an excellent ag lime.
… When quicklime is used as the liming material, LSS can have a CCE of 75-85%, just slightly less than agricultural lime’s CCE of 90-95%.
