Silver is the best conductor of electricity and heat in all metals, and thus a role in many electrical applications, particularly in the conductors, fuses and switching contacts. The contactor provides a connection between two separable conductors, allowing current to flow through them, accounting for the largest proportion of electrical demand.
        
The most important use of silver in the electronics industry is to provide thick film coatings. The most common are silver- palladium alloys for wire-shielded back, multilayer magnetic capacitors and underwater switches. Silver-coated films are used in automotive electric windshields. And used in conductive adhesives.
        
Silver is easily produced by electrolytic precipitation from double alkali metal cyanide ( for example, potassium cyanide or using a silver anode ) , and thus is widely used in an electroplating process. The silver solution is made of cyanide, carbonate, silver and a brightener. When a silver is added, a single metal salt such as silver cyanide or a bimetallic salt such as potassium silver cyanide is usually used. Various shapes of silver are used for the anode, and there are plates, rods, rods, and special shapes. The thickness of the coating on certain items, such as the fuse cap, is less than 1 micron, although the silver is likely to lose its luster in the future; heavy electrical equipment typically has a plating thickness of 2 to 7 microns.
        
Silver reflectivity is unparalleled and can be reflected 100% after polishing , allowing it to be applied to mirrors, glass, celluloid or metal.
        
Many rechargeable or non-rechargeable batteries use a silver alloy as the cathode. Although expensive, the power-to-weight ratio of silver batteries is superior to other metals. The most common type of batteries are small button-type silver oxide battery, (about 35% silver by weight) used in watches, cameras, and other similar electronic products. The silver used as a catalyst is usually in the form of a network or a crystal. For example, silver catalysts are important in the production of formaldehyde. Formaldehyde is mainly used as the outer casing of TV sets, computers and electrical switch boxes. Silver is used as a germicidal and algaecide in growing water purification systems in hospitals, remote areas and homes. Fluidity and contributes to the strength of the weld metal of silver (600 degrees Celsius referred to in the brazing), the braze alloy containing silver are widely used in air conditioning and refrigeration equipment from the distribution device to electrical engineering, it is also used in automotive And in the aircraft industry. Bearings with high purity silver have higher fatigue strength and load carrying capacity than any other type of bearing and are therefore widely used in various high-tech fields.
         
Photo industry
        
The processing of the photo is based on the presence of a silver halide that is sensitive to light, usually by mixing a silver solution with another alkaline metal halide solution. The photos are mainly used for radiographs, calligraphy and painting, and photos used by consumers. Photo manufacturers demand high quality silver.
        
Jewelry and silverware
        
Silver and gold have similar characteristics, with excellent reflectivity and best polishability. Therefore, the purpose of the silversmith is to polish the surface of the already bright silver. Sterling silver (999) does not easily lose its luster, but in order to increase durability, a small amount of copper is usually added when making jewelry. In addition, silver is also used in large quantities in gold and silver alloys. Since the 14th century , shilling silver with a purity of 925 has become the standard for silverware.
        
silver
        
In history, silver is more widely used for coin making than gold. Due to its low value and high supply, it is suitable for daily payments. Until the late 19th century, most countries used the silver standard. But with the rise of gold, the silver standard gradually gave way to the gold standard. Now in the United States, Australia, Canada and Mexico, silver coins are still a currency in circulation, mainly in the hands of investors.

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