What is Silver (Ag) Nanopowder/Nanoparticles?

Silver (Ag) Nanopowder/Nanoparticles are ultrafine silver particles with sizes typically in the range of 1-100 nm. They exhibit high electrical conductivity, antimicrobial properties, catalytic activity, and optical performance, making them essential in electronics, medical applications, coatings, energy storage, and catalysis.

Chemical Properties of Silver (Ag) Nanoparticles

• Chemical Formula: Ag
• Molecular Weight: 107.87 g/mol
• Density: ~10.49 g/cm³
• Melting Point: 961.8°C
• Boiling Point: 2,162°C
• Electrical Conductivity: Highest among all metals (~6.3 × 10⁷ S/m)
• Optical Properties: Plasmonic behavior, enhances light absorption
• Antibacterial Properties: Effective against bacteria, fungi, and viruses
• CAS Number: 7440-22-4

Applications of Silver (Ag) Nanoparticles

1. Electronics & Printed Circuit Boards (PCBs)

   • Used in conductive inks, coatings, and adhesives for flexible electronics, RFID tags, and printed circuit boards (PCBs).
   • Applied in touch screens, sensors, and semiconductor devices.

2. Medical & Antibacterial Applications

   • Incorporated in antimicrobial coatings, wound dressings, surgical instruments, and medical textiles.
   • Used in antibacterial face masks, air filters, and personal protective equipment (PPE).

3. Catalysis & Chemical Reactions

   • Acts as a catalyst in chemical reactions, hydrogen production, and environmental remediation.
   • Used in photocatalytic applications for air and water purification.

4. Coatings & Textiles

   • Provides antimicrobial and anti-odor properties in textiles, clothing, and hospital fabrics.
   • Applied in self-cleaning and anti-corrosion coatings.

5. Energy Storage & Batteries

   • Enhances performance in lithium-ion and silver-zinc batteries.
   • Used in supercapacitors and conductive nanocomposites.

6. Sensors & Optoelectronics

   • Used in biosensors, gas sensors, and optical sensing applications.
   • Enhances surface-enhanced Raman spectroscopy (SERS) and plasmonic devices.

7. Photovoltaics & Solar Cells

   • Improves light absorption and efficiency in thin-film solar cells and perovskite solar cells.

Silver (Ag) Nanoparticle Prices

Pricing depends on purity, particle size, functionalization, and industry application.

• Industrial Grade (99% Purity, Bulk Production): $300 – $1,000 per kg
• High Purity (99.9% – 99.99% for Electronics & Coatings): $2,000 – $5,000 per kg
• Functionalized & Ultra-High Purity (99.999% Research & Medical Grade): $10,000 – $50,000 per kg

Prices fluctuate based on global silver supply, production method (chemical, physical, or biological synthesis), and demand in high-tech industries.