Tungsten Trioxide

WO₃

IUPAC: Tungsten(VI) oxide

CAS: 1314-35-8

概要

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.

組成

元素 記号 原子 原子質量
Oxygen O 3 15.9990
Tungsten W 1 183.8400

元素組成

O
Oxygen ×3
20.7%
W
Tungsten ×1
79.3%

用途

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

豆知識

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

安全性

  • ⚠ Low toxicity
  • ⚠ Dust inhalation should be avoided

Structure

SMILES

O=[W](=O)=O

特性

タイプ
oxide
状態
solid
モル質量
231.84 g/mol
密度
7.1600 g/cm³
融点
1473.0 °C
沸点
1700.0 °C
溶解度
insoluble

Molecular Descriptors

Exact Mass
231.9357
TPSA
51.2 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
4
Complexity
61.0

別名

Tungsten trioxide Tungstic anhydride

関連化合物

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

CO

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).