Colloidal Silver powder Raw Materials CAS 7440-22-4

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Uses and synthesis of Colloidal Silver powder

Silver has an atomic number of 47, Colloidal Silver powder is a silver-white precious metal. Silver in the natural world in a very small amount to free state monomers, Colloidal Silver CAS 7440-22-4 mainly silver-containing compounds ores exist.Colloidal Silver Raw Materials chemical properties are stable, low activity, the price is expensive, thermal conductivity, electrical conductivity is very good, not easy to be corroded by chemicals, the texture is soft, rich in ductility.

Applications / Functions of Colloidal Silver powder

• Colloidal Silver powder is used in the electronic industry. It can also be used in the preparation of high purity silver salts and as high purity analytical reagents.
• Colloidal Silver CAS 7440-22-4 Used as hot hydrogen generator, gel propellant, combustion active agent, catalyst, water cleaning adsorbent, sintering active agent, etc.
• Used for elemental analysis of organic compounds
• Colloidal Silver Raw Materials used for filters, ceramic tube capacitors, carbon film potentiometers, solid tantalum capacitors, composite transistors, conductive heating elements, etc.

Physicochemical Property of Colloidal Silver powder

White lustrous metal (face-centred cubic crystal), second only to gold in ductility. Soluble in nitric acid, hot sulfuric acid, in the air dissolved in molten alkali metal hydroxides, alkali metal peroxides, alkali metal cyanides.

Production methodprocess of Colloidal Silver powder

Metal silver as raw material, dissolved in nitric acid, with electrolyte composition: containing Ag50g / L, HNO33 ~ 10g / L, added to the electrolysis tank for electrolysis. The temperature of the electrolyte is about 45℃, the tank voltage is 2.5V, and the cathode current density is 2.5~2.7A/cm2. Colloidal Silver powder is produced by electrolytic refining.

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