What is Tungsten Oxide?
Tungsten oxide (chemical formula: WO₃) is a key raw material used in powder metallurgy for producing hard alloys and tungsten products. According to the national standard (GB/T 3457-1998), tungsten oxide is categorized into two types:
- Tungsten Trioxide (Yellow Tungsten): Molecular formula WO₃, a pale yellow crystalline powder.
- Blue Tungsten Oxide (Blue Tungsten): A mixed tungsten oxide with the molecular formula W₂₀O₅₈, appearing as a deep blue or blue-black crystalline powder.
Specifications for Tungsten Oxide Powder
Tungsten oxide powder is classified into high-purity tungsten oxide, including high-purity tungsten trioxide and nano-tungsten trioxide powder.
- Chemical Formula: WO₃
- Particle Size: 50 nm, 80 nm, 100 nm, 500 nm, 1 μm, 5 μm, etc.
- Crystal Shape: Near-spherical
- Purity: ≥99.9%
- Color: Pale yellow
- Melting Point: 1473°C
- Density: 7.27 g/cm³
Customization Available: Specifications such as particle size and purity can be tailored to customer requirements. Purple tungsten and blue tungsten are also available upon request.
Features of Nano Tungsten Trioxide Powder
Nano tungsten trioxide powder, prepared via high-frequency plasma vapor combustion, offers:
- High Purity: Minimal organic impurities.
- Fine Particle Size: Uniform size distribution.
- Large Specific Surface Area: High surface cleanliness.
- Low Bulk Density: Easy to disperse.
- Gas Sensitivity: Detects gases such as CO₂ and NH₃ effectively.
Applications include tungsten oxide thin-film gas sensors and nanoparticle sensors, enhancing the detection of low-concentration gases.
Application Fields of Tungsten Oxide
- Industrial and Daily Uses:
- Used in industrial X-ray screen phosphors and flame-retardant fabric production for tungstates.
- Acts as a pigment in ceramics and paints due to its vivid yellow color.
- Electrochromic Windows (Smart Glass):
- Applied in smart glass that adjusts transparency with voltage, enabling users to modulate light and heat.
- Chemical Product Manufacturing:
- Used in paints, coatings, and as catalysts in the petroleum industry.
- As an intermediate product, tungsten oxide is processed into tungsten metal powder and tungsten carbide powder for manufacturing tungsten alloys (e.g., tungsten-copper, tungsten-nickel, and hard alloys).
- Advanced Applications:
- Utilized in solar energy absorption materials, stealth materials, and semiconductors with high gas sensitivity.
- Functions as a catalyst and a colorant for ceramics.
- Also used in the production of nano-tungsten powder and fireproof materials.
Price of Tungsten Oxide Powder
The price of tungsten oxide powder varies depending on purity, particle size, and market conditions. Prices for high-purity tungsten oxide and nano-tungsten oxide are determined based on daily manufacturer quotes.
Packaging and Storage
- Packaging: Typically in inert gas and anti-static packaging.
- Storage: Should be stored in a dry, cool environment, sealed to prevent moisture absorption and agglomeration, which may affect dispersion and performance.
About CTIA GROUP LTD
CTIA GROUP LTD is a high-tech enterprise integrating sales, research, development, manufacturing, and application services for nanomaterials. It has established long-term partnerships with academic institutions, aerospace organizations, and manufacturing enterprises. Their product range includes rare earth oxides, precious metal powders, elemental metal powders, compound powders, and alloy powders. With comprehensive offerings, CTIA GROUP LTD meets the diverse needs of clients in research, experimentation, production, and consumption, earning widespread trust over the years.
More details of tungsten oxide product, please visit website: tungsten-oxide.com
Please contact CHINATUNGSTEN for inquiry and order of tungsten oxide:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
