Tungsten(VI) Oxide Powder (Tungsten Trioxide & Blue Tungsten Oxide )
| Tungsten Trioxide | |
| Synonym: | Tungstic anhydride,Tungsten(VI) oxide, Tungstic oxide |
| CAS No. | 1314-35-8 |
| Chemical formula | WO3 |
| Molar mass | 231.84 g/mol |
| Appearance | Canary yellow powder |
| Density | 7.16 g/cm3 |
| Melting point | 1,473 °C (2,683 °F; 1,746 K) |
| Boiling point | 1,700 °C (3,090 °F; 1,970 K) approximation |
| Solubility in water | insoluble |
| Solubility | slightly soluble in HF |
| Magnetic susceptibility (χ) | −15.8·10−6 cm3/mol |
High Grade Tungsten Trioxide Specification
| Symbol | Grade | Abbreviation | Formula | F.s.s.s(µm) | Apparent Density(g/cm³) | Oxygen Content | Main content (%) |
| UMYT9997 | Tungsten Trioxide | Yellow Tungsten | WO3 | 10.00～25.00 | 1.00～3.00 | - | WO3.0≥99.97 |
| UMBT9997 | Blue Tungsten Oxide | Blue Tungsten | WO3-X | 10.00～22.00 | 1.00～3.00 | 2.92～2.98 | WO2.9≥99.97 |
Note:Blue Tungsten mainly mixed ; Packing:In iron drums with double inner plastic bags of 200kgs net each.
What is Tungsten Trioxide used for?
Tungsten Trioxide (WO₃) is a versatile and high-performance metal oxide with unique chemical, optical, and electronic properties. It serves as a critical precursor material and a functional compound in a wide array of traditional and advanced technological applications.
Our high-purity Tungsten Trioxide is engineered for excellence in the following fields:
1. Primary Industrial Precursor
Tungsten Trioxide is the fundamental starting material for the majority of tungsten-based products.
* Metallic Tungsten & Tungsten Carbide: Reduced to produce tungsten metal powder, which is then used to manufacture hard alloys, tungsten carbide tools, and high-density components.
* Tungstate Compounds: Synthesized into various tungstates (e.g., calcium tungstate, sodium tungstate), which are essential in numerous downstream applications.
2. Functional Pigments & Colorants
Leveraging its intense intrinsic yellow color, WO₃ is a valuable inorganic pigment.
* Ceramics & Paints: Imparts a stable, durable, and vibrant yellow hue to glazes, ceramics, and industrial paints. It is valued for its heat stability and chemical resistance.
3. Advanced Materials & Cutting-Edge Technologies
The functional properties of WO₃ make it a key material in modern technological innovations.
* Smart Windows & Electrochromic Devices: In the form of thin films, Tungsten Trioxide can reversibly change its color and transparency upon the application of a small electrical voltage. This electrochromic effect is utilized in energy-saving "smart windows" for buildings and automobiles, as well as in displays and rearview mirrors.
* Gas Sensors: Its electrical conductivity changes in the presence of specific gases (e.g., nitrogen oxides, ozone), making it an excellent and highly sensitive material for solid-state gas sensors used in environmental monitoring, industrial safety, and automotive emission control systems.
* Photocatalysis & Solar Energy: Tungsten Trioxide is a prominent semiconductor photocatalyst. It absorbs a significant portion of the solar spectrum (including blue light) and can be used for applications such as air/water purification (breaking down organic pollutants) and in the development of photoelectrochemical cells for solar water splitting.
4. Niche & Established Applications
* Fireproofing Agents: Tungstates derived from WO₃ are used to impart flame-retardant properties to textiles, wood, and other materials.
* X-Ray Scintillators: Calcium tungstate (CaWO₄), produced from WO₃, is a classical phosphor used in X-ray intensifying screens and radiation detectors, converting X-ray energy into visible light.
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Key Advantages of Our Tungsten Trioxide:
* High Purity: Ensures consistent performance and superior quality in downstream synthesis and applications.
* Versatility: Functions as both a primary chemical feedstock and a high-value functional material.
* Advanced Forms: Available in various grades, including nano-structured powders and thin-film precursors to meet specific R&D and industrial needs.
Disclaimer: The information presented here is for descriptive purposes. It is the responsibility of the user to determine the suitability of this product for their specific application.
