Silver CAS#7440-22-4

Sterling silver applications
Silver bars
Silver bars
Sterling silver is a beautiful silvery-white metal that has good ductility, and its electrical and thermal conductivity is the highest among all metals. Silver is used to make sensitive physical instruments, various automation devices, rockets, submarines, computers, nuclear devices, and communication systems, all which have a large number of contact points made of silver. During use, each contact point has to work millions of times, must be wear-resistant and reliable, can withstand strict work requirements, and silver can meet all kinds of requirements. If rare earth elements are added to silver, the performance is even better. Contact points made of this silver with rare earth elements can extend their life several times.Electronic and electrical materials
Electronic appliances are the industries with the largest amount of silver, and their use is divided into electrical contact materials, composite materials and welding materials. Silver and silver-based electrical contact materials can be divided into: sterling silver, silver alloys, silver – oxides, burned gold. The annual output of silver and silver-based electrical contact materials in the world is about 2900 to 3000 tons. Composite materials are materials prepared by composite technology, which are divided into silver alloy composite materials and silver matrix composite materials. From the perspective of silver saving technology, silver composite materials are a new type of new material with great development prospects. Silver welding materials such as sterling silver solder, silver-copper solder, etc.
Photosensitive material
Silver halide photosensitive materials are one of the largest areas of silver use. The most produced and sold photosensitive materials are photographic film, photo paper, X-ray film, fluorescence information documentary, electron microscope photographic soft film and printing film. In the 1990s, the amount of silver used in the world photography industry was about 6000 to 6500 tons. Due to the development of electronic imaging and digital imaging technology, the amount of silver halide photosensitive materials has been reduced, but the application of silver halide photosensitive materials is still irreplaceable in some aspects, and there is still a large market space.
Chemical materials
Silver has two main applications in this regard, one is used as a catalyst, such as used in redox reactions and polymerization reactions, for the treatment of industrial waste gases containing sulfides, etc. The second is electronic plating industrial preparations, such as silver paste, silver potassium cyanide and so on.