NanowizTech Silver water dispersion (AgNPs) can be used for a variety of applications such as Textile, agriculture, cosmetics, deodorizing agents in paints, energy harvesting and surface enhanced Raman. Silver Nanoparticles Dispersion (Spherical) CAS: 7440-22-4 Atomic Formula: Ag Atomic Weight: 107.87. Our products (NanowizTech) silver nanoparticles are spherical nanoparticles of metallic silver dispersed in an aqueous buffer. NanowizTech provides High Purity, Low Cost, Fast Shipping.