Calcium oxide

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Calcium oxide
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Systematic name Calcium oxide
Molecular formula CaO
Molar mass 56.0774 g·mol
Appearance White chunky powder
Density 3.35 g/cm³
Melting point 4,662°F (2,572°C)
Boiling point 5,162°F (2,850°C)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Infobox disclaimer and references

Calcium oxide is a chemical compound of calcium and oxygen. Its chemical formula is CaO. It is known as quicklime. It is made in a lime kiln. It releases heat when dissolved in water and changes into calcium hydroxide. It is a white powder.

It is also a base. It reacts with acids to make calcium salts. Quicklime is an important ingredient of cement

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