Silver Nanopowder (Ag, 99.99%, 80-100 nm, metal basis)

Silver Nanopowder (Ag, 99.99%, 80-100 nm, metal basis) is a high-purity form of silver in the nanoparticle range, with particle sizes between 80-100 nanometers (nm). This nanopowder retains many of the well-known beneficial properties of silver, such as high conductivity, antimicrobial properties, and catalytic activity. Here’s a detailed breakdown:

1. Key Features:

• Silver (Ag): The nanopowder is primarily composed of silver, a metal renowned for its excellent electrical conductivity, thermal conductivity, and antimicrobial effects. Silver nanoparticles exhibit enhanced properties compared to bulk silver, such as increased surface reactivity.
• Purity (99.99%): The 99.99% purity indicates that the silver nanopowder has minimal impurities, ensuring high-quality material that is ideal for demanding applications where purity is essential.
• Nanoparticle Size (80-100 nm): The size range of 80-100 nm offers a balance between high surface area and practical dispersion properties. These larger nanoparticles compared to smaller sizes (e.g., 20 nm) may exhibit different reactivity and stability characteristics, making them suitable for specific applications that require these attributes.
• Metal Basis: The metal basis refers to the amount of actual silver present in the nanopowder, indicating that the specified 99.99% purity is based on the metal content, ensuring precise material properties.

2. Properties:

• Surface Area and Reactivity: The 80-100 nm size range ensures a good balance between reactivity and dispersion stability. Silver nanoparticles at this size have a higher surface area than bulk silver, leading to enhanced chemical reactivity, which is ideal for various applications like catalysis and sensor technologies.
• Electrical and Thermal Conductivity: Silver is the best-known metal for its electrical conductivity and thermal conductivity, and these properties are retained in the nanopowder form. The nanoparticles can be used in electronic and thermal management applications where efficient conductivity is required.
• Antimicrobial Properties: Silver nanoparticles are known for their antibacterial and antimicrobial properties, which are widely used in medical devices, textiles, wound care products, and surface coatings to prevent microbial growth and infections.
• Catalytic Activity: The increased surface area of the nanoparticles enhances their catalytic activity, making them ideal for applications that require efficient chemical reactions, such as in fuel cells, environmental remediation, and chemical synthesis.

3. Applications:

• Electronics: Silver nanoparticles, due to their high electrical conductivity, are often used in printed electronics, conductive inks, and other electronic components such as sensors, flexible circuits, and electrodes.
• Medical and Antimicrobial Uses: The antimicrobial properties make this nanopowder valuable for use in medical devices such as wound dressings, catheters, and implants. It is also used in antibacterial coatings for surfaces to prevent the growth of bacteria.
• Catalysis: Silver nanoparticles with their high surface area and reactivity are widely used in catalysis for applications such as chemical production, fuel cells, and environmental remediation to enhance the efficiency of chemical reactions.
• Sensors: Silver nanoparticles are used in sensor applications, including gas, chemical, and biological sensors, where their high surface reactivity allows for accurate detection of target molecules.
• Coatings and Materials: The nanoparticles are also incorporated into coatings for various surfaces to provide desired properties, including conductivity, antimicrobial effects, and enhanced chemical resistance.

4. Handling and Safety:

• Health and Safety Considerations: As with all nanomaterials, special care should be taken when handling silver nanopowder. While silver is generally considered safe, nanoparticles can pose risks if inhaled or ingested. Proper personal protective equipment (PPE) such as gloves, goggles, and face masks should be worn when handling these materials, especially in powder form.
• Storage: Silver nanopowder should be stored in a cool, dry, and well-ventilated environment to prevent oxidation and aggregation. It is recommended to keep the material in sealed containers to protect it from moisture and contaminants.
• Precautions: Handling should be done in a controlled environment (e.g., fume hoods) to prevent the inhalation of particles. Follow all relevant safety protocols for the handling and disposal of nanopowder materials to minimize health risks and environmental impact.

Summary:

Silver Nanopowder (Ag, 99.99%, 80-100 nm, metal basis) is a high-quality nanopowder made of pure silver with a particle size range of 80-100 nm. The material retains all the beneficial properties of silver, such as high electrical and thermal conductivity, antimicrobial properties, and catalytic activity, making it ideal for use in electronics, medical devices, catalysis, and sensor technologies. The 99.99% purity ensures that the material is of the highest quality, suitable for sensitive and demanding applications. As with any nanopowder, proper handling, storage, and safety measures are essential to avoid potential health risks and ensure effective use.