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Tungsten Trioxide Powder, WO3 Powder, CAS 1314-35-8

HTWW1126

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Tungsten Trioxide Powder is a light yellow or green crystalline powder with the formula WO3, which is an important raw material for producing metal tungsten, hard alloy, and tungstate, and can also be used as a coloring agent, catalyst, fire retardant, etc. Heeger Materials offers top-quality WO3 Powder at competitive prices, with customized options for particle size to meet specific requirements.

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Data sheet

Particle Size8-25 μm
MaterialsWO3
Purity99.5%, 99.9%
CAS1314-35-8

More info

Tungsten Trioxide, or tungsten (VI) oxide or tungstic anhydride, is a thermally stable, water-insoluble tungsten compound. It is a yellow crystalline solid that changes to green or deep blue when exposed to varying temperatures and humidity levels. This color change is accompanied by an increase in electrical conductivity. These unique properties make WO₃ highly valuable for applications such as smart windows and electronic devices

Tungsten Troxide Powder, WO3 Powder, CAS 1314-35-8

  • Formula: WO3
  • Density: 7.16 g/cm3
  • Melting point: 1473 ℃
  • Boiling point: 1750 ℃
  • Solubility: insoluble in water, soluble in alkali, and slightly soluble in acid.

Tungsten Trioxide (WO3) Powder Specifications

Product

Tungsten Trioxide Powder

Grade

WO3-0

WO3-1

Level

Level-Extra

Level-1

Purity (%)

99.9%

99.5%

APS (μm)

8-25

8-25

Apparent Density (g/cm3)

1.5-3.0

1.5-3.0

Impurity Contents (mass fraction), %, max

Al

0.0005

Mo

0.0020

Al

0.0010

Mo

0.0040

As

0.0015

Na

0.0010

As

0.0015

Na

0.0020

Bi

0.0001

Ni

0.0005

Bi

0.0001

Ni

0.0007

Ca

0.0010

P

0.0008

Ca

0.0010

P

0.0015

Co

0.0010

Pb

0.0001

Co

0.0010

Pb

0.0001

Cr

0.0010

S

0.0007

Cr

0.0010

S

0.0010

Cu

0.0003

Sb

0.0005

Cu

0.0005

Sb

0.0010

Fe

0.0015

Si

0.0010

Fe

0.0015

Si

0.0010

K

0.0010

Sn

0.0002

K

0.0015

Sn

0.0005

Mg

0.0007

Ti

0.0010

Mg

0.0010

Ti

0.0010

Mn

0.0010

V

0.0010

Mn

0.0010

V

0.0010

Tungsten Trioxide (WO3) Powder SEM

Tungsten Trioxide Powder, WO3 Powder SEM

Tungsten Trioxide (WO3) Powder Applications

  • It can be reduced by hydrogen to obtain metal tungsten.
  • It can be mixed with carbon and other metals to form a hard alloy.
  • It can be reacted with various metals or non-metals to form tungstates.
  • It can be used as a pigment in ceramics and paints, giving them a yellow or green color, and enhancing their thermal stability and chemical resistance.
  • It can be used as a catalyst or a catalyst support in various reactions.
  • It can be used as a fire retardant in plastics, rubber, textiles, and wood, and reduce the flammability and smoke emission of the materials.

Tungsten Trioxide (WO3) Powder Packing

Tungsten Trioxide (WO3) Powder should be stored in a sealed container in a dry and cool place, and should not be exposed to air for an extended time. HM offers vacuum-sealed packaging including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum, or customized packaging as per specific requirements.

Tungsten Trioxide Powder, WO3 Powder Packing

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