Gold belongs to metal. Gold (GOLD) is a single -quality form of chemical element gold (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments. The color of gold is golden yellow, metal luster, difficult to break down. The density is 19.3g/cm3, and the melting point is 1064.4 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. The resistance of pure gold is 2.4P. Pure gold has good anti -chemical corrosion and is the best electroplating material.
The physical properties of gold Gold as a precious metal, with good physical characteristics, "real gold is not afraid of fire" is gold. Chemical stability is very high, it is not easy to have chemical reactions with other substances, and you don't have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. After cooling, it is still golden, with high density and heavy feel. The toughness and ductility, good guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced. The above reference: Baidu Encyclopedia-Gold
Gold belongs to metal.
Gold (GOLD) is a single -quality form of chemical element gold (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.
The color of gold is golden yellow, metal luster, difficult to break down. The density is 19.3g/cm3, and the melting point is 1064.4 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. The resistance of pure gold is 2.4P. Pure gold has good anti -chemical corrosion and is the best electroplating material.
The physical properties of gold
Gold as a precious metal, with good physical characteristics, "real gold is not afraid of fire" is gold. Chemical stability is very high, it is not easy to have chemical reactions with other substances, and you don't have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. After cooling, it is still golden, with high density and heavy feel.
The toughness and ductility, good guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced.
The above reference: Baidu Encyclopedia-Gold