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Tungsten Trioxide Powder is a light...
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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Availability date: 03/01/2013
| Particle Size | 8-25 μm |
| Materials | WO3 |
| Purity | 99.5%, 99.9% |
| CAS | 1314-35-8 |
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 Trioxide Powder, WO3 Powder, CAS 1314-35-8 belongs to the tungsten products range and is selected for very high melting point, density, hardness and strength at elevated temperature. It is commonly used in formulation, sintering, coating, filler, catalyst, electronic material and research use as well as furnace components, shielding, electrodes, evaporation systems, aerospace parts and precision tooling. When requesting a quote, confirm purity, particle size distribution, morphology, surface treatment, packaging and quantity.
For material comparison or adjacent product forms, browse tungsten rods, tungsten plates, molybdenum products and tungsten products.
Can Tungsten Trioxide Powder, WO3 Powder, CAS 1314-35-8 be customized? Yes. Heeger Materials can review custom sizes, purity or grade requirements, tolerances, drawings, quantities and application conditions for this product.
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 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.

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