Tungsten Trioxide

WO₃

IUPAC: Tungsten(VI) oxide

CAS: 1314-35-8

Обзор

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.

Состав

Элемент Символ Атомы Атомная масса
Oxygen O 3 15,9990
Tungsten W 1 183,8400

Элементный состав

O
Oxygen ×3
20,7%
W
Tungsten ×1
79,3%

Применение

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

Интересные факты

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

Безопасность

  • ⚠ Low toxicity
  • ⚠ Dust inhalation should be avoided

Structure

SMILES

O=[W](=O)=O

Свойства

Тип
oxide
Состояние
solid
Молярная масса
231,84 g/mol
Плотность
7,1600 g/cm³
Температура плавления
1473,0 °C
Температура кипения
1700,0 °C
Растворимость
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

Также известен как

Tungsten trioxide Tungstic anhydride

Связанные соединения

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 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).