Calcium Oxide

CaO

IUPAC: Calcium oxide

CAS: 1305-78-8

Aperçu

Calcium oxide (quicklime) is a white caustic substance produced by heating limestone. It reacts exothermically with water to form slaked lime.

Composition

Élément	Symbole	Atomes	Masse atomique
Oxygen	O	1	15,9990
Calcium	Ca	1	40,0780

Composition élémentaire

Oxygen ×1

28,5%

Calcium ×1

71,5%

Usages

• Cement production
• Steel manufacturing
• Water treatment
• Soil stabilization

Le saviez-vous

✦ Quicklime was used in ancient warfare — Roman ships catapulted it at enemy vessels

Sécurité

⚠ Corrosive
⚠ Causes severe burns
⚠ Exothermic reaction with water

Structure

SMILES

O=[Ca]

Propriétés

Type: oxide
État: solid
Masse molaire: 56,08 g/mol
Densité: 3,3400 g/cm³
Point de fusion: 2613,0 °C
Point d'ébullition: 2850,0 °C
Solubilité: Reacts

Molecular Descriptors

Exact Mass: 55,9575
TPSA: 17,1 Å²
H-Bond Donors: 0
H-Bond Acceptors: 1
Rotatable Bonds: 0
Heavy Atoms: 2
Complexity: 2,0

Composés associés

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

Chromium Trioxide

CrO₃

Cobalt(II) Oxide

CoO

Copper(I) Oxide

Cu₂O

Lithium Nickel Manganese Cobalt Oxide

LiNi₀.₃₃Mn₀.₃₃Co₀.₃₃O₂

Gallium(III) Oxide

Ga₂O₃

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Cadmium Oxide

CdO

Frequently Asked Questions

What is Calcium Oxide?

Calcium Oxide (CaO) is a oxide compound with the IUPAC name Calcium oxide.

What is the molecular weight of Calcium Oxide?

Calcium Oxide has a molar mass of 56.08 g/mol.

What state is Calcium Oxide at room temperature?

Calcium Oxide is a solid at room temperature.

Is Calcium Oxide organic or inorganic?

Calcium Oxide is classified as an inorganic compound.

What elements make up Calcium Oxide?

Calcium Oxide (CaO) is composed of Oxygen (O), Calcium (Ca).