Traditional Culture Encyclopedia - Photography and portraiture - What is the melting point of silver?
What is the melting point of silver?
The melting point of silver is 961.93℃.
Silver is a transition metal with the chemical symbol Ag. Silver is one of the metals known and utilized in ancient times and is an important precious metal. Silver exists as a simple substance in nature, but most of it exists in the form of chemical compounds in silver ores.
Silver's physical and chemical properties are relatively stable, it has good thermal and electrical conductivity, is soft, and highly ductile. Its reflectivity is extremely high, reaching more than 99%, and it has many important uses.
Chemical properties of silver
Silver does not react easily with sulfuric acid, so sulfuric acid can be used to clean copper oxide fire marks left after silver soldering and annealing in jewelry manufacturing. Silver easily reacts with sulfur and hydrogen sulfide to form black silver sulfide, which is common on tarnished silver coins or other items. Silver can react with oxygen at high temperatures to produce brown-black silver oxide (it can also react at room temperature, but the speed is very slow).
Metallic silver can be attacked by strong oxidants such as potassium permanganate or potassium dichromate in the presence of potassium bromide (KBr); these compounds are used in photography to bleach visible images, converting them into It is a silver halide that can be removed by sodium thiosulfate and redeveloped to enhance the original image.
Reference for the above content: Baidu Encyclopedia-Silver
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