Quicklime

Alternate Names: Burnt Lime, Dead-burned lime

Oxide	Analysis	Formula
CaO	100.00%	1.00
Oxide Weight		56.10
Formula Weight		56.10

Notes

Quicklime is calcined calcium carbonate or limestone. It is unstable (wants to reabsorb the lost CO2) so must be used quickly or sealed from exposure to the air. It is used as a source of CaO in the glass and enamel industries and in refractories (often in combination with calcined dolomite).

If Quicklime is calcined higher than necessary for slaking (to make calcium hydroxide) it is referred to as dead-burned lime.

Related Information

Links

URLs	http://en.wikipedia.org/wiki/Calcium_oxide Quicklime at Wikipedia
URLs	http://en.wikipedia.org/wiki/Lime_kiln Lime kiln at wikipedia
URLs	http://www.specialtyminerals.com/our-minerals/what-is-lime-quicklime/ What is Quicklime at SpecialtyMinerals.com
Temperatures	Calcium carbonate decomposition (750-1000)
Typecodes	Refractory Materials that melt at high temperatures. These are normally used for kiln bricks, furniture, etc. or for ceramics that must withstand high temperatures during service.
Typecodes	Flux Source Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies.
Materials	Calcined Dolomite
Materials	Precipitated Lime
Oxides	CaO - Calcium Oxide, Calcia

By Tony Hansen
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