Tungsten Trioxide

WO₃

IUPAC: Tungsten(VI) oxide

CAS: 1314-35-8

Aperçu

Tungsten trioxide is a yellow powder that is the primary intermediate in tungsten metal production. It is reduced with hydrogen or carbon to produce tungsten metal. It also has photochromic and electrochromic properties, changing color when exposed to light or electric fields.

Composition

Élément	Symbole	Atomes	Masse atomique
Oxygen	O	3	15,9990
Tungsten	W	1	183,8400

Composition élémentaire

Oxygen ×3

20,7%

Tungsten ×1

79,3%

Usages

• Tungsten metal production
• Electrochromic smart windows
• Catalyst
• Yellow ceramic pigment

Le saviez-vous

✦ Electrochromic smart windows using WO₃ can darken or lighten with an applied voltage

Sécurité

⚠ Low toxicity
⚠ Dust inhalation should be avoided

Structure

SMILES

O=[W](=O)=O

Propriétés

Type: oxide
État: solid
Masse molaire: 231,84 g/mol
Densité: 7,1600 g/cm³
Point de fusion: 1473,0 °C
Point d'ébullition: 1700,0 °C
Solubilité: insoluble

Molecular Descriptors

Exact Mass: 231,9357
TPSA: 51,2 Å²
H-Bond Donors: 0
H-Bond Acceptors: 3
Rotatable Bonds: 0
Heavy Atoms: 4
Complexity: 61,0

Aussi connu sous le nom de

Tungsten trioxide Tungstic anhydride

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 Tungsten Trioxide?

Tungsten Trioxide (WO₃) is a oxide compound with the IUPAC name Tungsten(VI) oxide.

What is the molecular weight of Tungsten Trioxide?

Tungsten Trioxide has a molar mass of 231.84 g/mol.

What state is Tungsten Trioxide at room temperature?

Tungsten Trioxide is a solid at room temperature.

Is Tungsten Trioxide organic or inorganic?

Tungsten Trioxide is classified as an inorganic compound.

What elements make up Tungsten Trioxide?

Tungsten Trioxide (WO₃) is composed of Oxygen (O), Tungsten (W).