Silver (Ag) Micron Powder 

Purity: 99.99 %, Size: Sub-Micron

Silver (Ag) Micron Powder is a high-purity (99.99%) metallic agent characterized by its specialized sub-micron particle size, bridging the gap between traditional micron-scale powders and nanoparticles. This specific sizing provides an optimized surface area that enhances chemical reactivity and electrical contact while maintaining the structural stability and ease of handling associated with micron-grade materials. With a high density of 10.491 g/cm³ and a low electrical resistivity of 108.4 microhm-cm, this powder is engineered for precision applications in microelectronics and advanced metallurgy. As a research-grade material, it offers superior melting point stability (960.8 °C) and crystalline integrity, making it ideal for professional use in high-performance coatings and catalytic systems. To preserve its high purity and prevent atmospheric degradation, the powder should be handled by experts and stored in a controlled, dry environment away from direct sunlight.

Technical Properties

Applications

• Electronics and Conductive Pastes: Due to its sub-micron sizing and exceptional conductivity, this powder is a critical ingredient in high-resolution conductive inks and pastes. It is used in the fabrication of multi-layer ceramic capacitors (MLCCs), RFID antennas, and flexible printed circuits where reliable electron transport and low contact resistance are required.
• Advanced Soldering and Brazing: The sub-micron particle distribution allows for improved sintering behavior and lower melting temperatures compared to larger micron powders. It is utilized in high-strength lead-free solder alloys and vacuum brazing processes for aerospace and automotive components, ensuring robust joints that resist thermal fatigue.
• Biomedical and Antimicrobial Protection: This powder is integrated into medical device coatings, surgical textiles, and wound dressings to provide broad-spectrum antimicrobial activity. The sub-micron particles ensure a sustained release of silver ions, effectively preventing biofilm formation on clinical surfaces and orthopedic implants without compromising the mechanical properties of the substrate.
• Catalytic and Chemical Synthesis: Ag Sub-Micron Powder acts as an efficient heterogeneous catalyst in selective oxidation and organic synthesis reactions. Its optimized surface area facilitates faster reaction kinetics in industrial processes such as the production of formaldehyde and ethylene oxide, improving overall yield and selectivity.
• Surface Coatings and Infrastructure: Applied in industrial-grade paints and protective coatings, the powder imparts durable antibacterial and corrosion-resistant properties to building materials. It is used to create hygienic surfaces in food processing facilities and hospital environments, providing a long-lasting barrier against microbial growth.
• Environmental and Filtration Systems: In advanced water purification and air filtration, sub-micron silver particles help eliminate bacterial loads and prevent the buildup of mold and fungi. It is explored in the development of bioactive filtration membranes that ensure consistent sanitization in industrial wastewater treatment and public HVAC systems.