Overview of Tungsten trioxide / Tungsten oxide CAS 1314-35-8 O3W
Metal powder is a common form of metal that has been processed into fine particles, ranging from a few micrometers to over 100 microns in diameter. It plays a crucial role in various industrial applications due to its unique properties and versatility.
Features of Tungsten trioxide / Tungsten oxide CAS 1314-35-8 O3W
Physical Characteristics
Particle Size: Ranging from nanometers to hundreds of micrometers, the size distribution significantly influences the powder’s flowability, packing density, and sintering behavior.
Shape: Particles can be spherical, irregular, flake-like, or dendritic, each shape affecting the final product’s mechanical properties and surface finish.
Purity: Depending on the production method, metal powders can achieve high levels of purity, critical for applications like electronics and aerospace where impurities can degrade performance.
Density: While less dense than their solid counterparts due to the presence of air between particles, metal powders can be densely packed during processing to approach the density of the solid metal.
Chemical Properties
Reactivity: Some metal powders, particularly aluminum and titanium, are highly reactive with air and moisture, necessitating careful handling and storage under inert atmospheres or vacuum.
Oxidation: Exposure to air can lead to surface oxidation, forming a passive layer that affects sintering and other processes. This can be managed through surface treatment or use of protective atmospheres.
(Tungsten trioxide / Tungsten oxide CAS 1314-35-8 O3W)
Parameters of Tungsten trioxide / Tungsten oxide CAS 1314-35-8 O3W
Tungsten trioxide, also known as tungsten oxide (CAS Number: 1314-35-8), is an inorganic compound that consists of tungsten (W) atoms bonded to oxygen (O) atoms, forming a chemical structure with the formula WO3. This material holds significant importance due to its unique properties and diverse applications across various industries.
Tungsten trioxide is a black or dark-gray solid, characterized by its amorphous or crystalline nature, depending on the synthesis method. It exists in two main forms: monoclinic and hexagonal, with the hexagonal form being more thermodynamically stable. The compound has a high melting point, around 2,790°C (5,060°F), which makes it exceptionally heat-resistant and suitable for applications requiring high-temperature stability.
One of the most notable features of tungsten trioxide is its strong oxidizing ability, making it a potent catalyst in various chemical reactions, particularly in the oxidation of organic compounds. Its high surface area and Lewis acidity contribute to its effectiveness in catalytic processes. In addition, tungsten trioxide is known for its photocatalytic properties, meaning it can generate reactive oxygen species under light exposure, which can be harnessed for water purification, air purification, and environmental remediation.
In electronics, tungsten trioxide is used as a thin film in the production of electronic devices like field-effect transistors and solar cells. Its semiconducting properties, combined with its high work function, make it an essential component in the fabrication of advanced semiconductor technologies. Furthermore, tungsten oxide is employed in gas sensors, where it exhibits sensitivity to gases like hydrogen, carbon monoxide, and ammonia due to its redox activity.
In the glass industry, tungsten oxide serves as a refractory material, improving the glass’s hardness, chemical durability, and resistance to thermal shock. It is also used in the production of optical materials, such as glasses and coatings, due to its low absorption in the ultraviolet and visible spectrum.
In the aerospace industry, tungsten trioxide finds application as a thermal barrier coating for high-temperature components like jet engine parts. The material’s excellent thermal conductivity and resistance to thermal degradation protect the underlying materials from excessive heat exposure.
In the field of ceramic arts, tungsten trioxide is utilized as a glaze additive, imparting a glossy finish and enhancing the color and durability of ceramics. It is also employed in the creation of tungsten-bronze alloys, which combine tungsten oxide with copper to produce strong, wear-resistant materials.
In summary, tungsten trioxide, CAS Number 1314-35-8, is a versatile compound with a myriad of applications due to its exceptional properties. Its high melting point, strong oxidizing ability, and wide range of catalytic, electronic, and thermal capabilities make it a crucial material in various sectors, from electronics to aerospace, glass manufacturing, and even art. As research continues to uncover new applications, tungsten trioxide’s potential for innovation and performance enhancement remains vast.
(Tungsten trioxide / Tungsten oxide CAS 1314-35-8 O3W)
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