What Is the Formula for Calcium Oxide?

The formula of calcium oxide is CaO. And it is also known as quicklime. It is a white solid.

Calcium oxide obtained from the decomposition of calcium carbonate. The decomposition reaction is as follows;

CaCO₃ CaO + O₂

This process is known as calcination.

It’s used in the production of cement, paper, and high-grade steel, among other things. In laboratories.