Solder features low melting point, good ductility, easy alloying with many metals, non-toxicity, corrosion resistance, and attractive appearance, being widely used in electronics, food, automotive, medicine, textiles, construction, handicraft manufacturing and various other industries. The applications of solder mainly focus on tin solders, tinplate, tin chemicals, and float glass:
Used as tin solder in the electronics industry, playing roles in mechanical connection, electrical connection, and heat exchange;
Applied to manufacture tin-plated sheets, such as tinplate used as packaging materials for food and beverages;
Tin compounds can be used as raw materials for ceramic glazes, mordants for printing and dyeing silk fabrics, thermal stabilizers for plastics, as well as fungicides and insecticides.
Tin has the chemical symbol Sn, atomic number 50, density of 7.365 g/cm³ (at 20¡ãC), melting point of 231.9¡ãC, and boiling point of 2270¡ãC. It is a soft, malleable metal with a silvery white color slightly tinged with blue. Tin has stable chemical properties, and is easy to extrude, stretch, forge, and cut. It is corrosion-resistant, fusible, has a low friction coefficient, and tin salts are non-toxic.