Silicon Dioxide

SiO₂

IUPAC: Silicon dioxide

CAS: 7631-86-9

Aperçu

Silicon dioxide (silica) is the most abundant mineral in Earth's crust. Quartz, sand, and glass are all forms of SiO₂.

Composition

Élément Symbole Atomes Masse atomique
Oxygen O 2 15,9990
Silicon Si 1 28,0850

Composition élémentaire

O
Oxygen ×2
53,3%
Si
Silicon ×1
46,7%

Usages

  • • Glass manufacturing
  • • Semiconductor industry
  • • Concrete
  • • Optical fibers

Le saviez-vous

  • ✦ SiO₂ makes up about 59% of Earth's crust by mass

Sécurité

  • ⚠ Crystalline silica dust is a respiratory hazard

Structure

SMILES

O=[Si]=O

Propriétés

Type
oxide
État
solid
Masse molaire
60,08 g/mol
Densité
2,6500 g/cm³
Point de fusion
1713,0 °C
Point d'ébullition
2950,0 °C
Solubilité
Insoluble

Molecular Descriptors

Exact Mass
59,9668
TPSA
34,1 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
18,0

Composés associés

Copper(I) Oxide

Cu₂O

Aluminum Oxide

Al₂O₃

Beryllium Oxide

BeO

Calcium Oxide

CaO

Boron Trioxide

B₂O₃

Copper(II) Oxide

CuO

Molybdenum Trioxide

MoO₃

Magnesium Oxide

MgO

Manganese Dioxide

MnO₂

Cadmium Oxide

CdO

Frequently Asked Questions

What is Silicon Dioxide?
Silicon Dioxide (SiO₂) is a oxide compound with the IUPAC name Silicon dioxide.
What is the molecular weight of Silicon Dioxide?
Silicon Dioxide has a molar mass of 60.08 g/mol.
What state is Silicon Dioxide at room temperature?
Silicon Dioxide is a solid at room temperature.
Is Silicon Dioxide organic or inorganic?
Silicon Dioxide is classified as an inorganic compound.
What elements make up Silicon Dioxide?
Silicon Dioxide (SiO₂) is composed of Oxygen (O), Silicon (Si).