Question #e9b55

1 Answer
Feb 22, 2016

There's no name of the discoverer, or rather the inventor.
(Calcium oxide doesn't occur naturally, just waiting to be discovered, so it has to be made, hence the word 'inventor')

Explanation:

Calcium oxide, or quicklime, has been used for thousands of years. It is made by heating calcium carbonate in an oven. This could be in the form of limestone, sea shells, or even marble. The carbonate disintegrates:
#CaCO_3->CaO+CO_2#

If you let calcium oxide react with water, calcium hydroxide, or slaked lime, is formed:
#CaO+H_2O->Ca(OH)_2#

The Romans used this as an ingredient for mortar to build with and for their version of concrete -- Many buildings, like the Colosseum, were (partly) made with it.