Tin is a chemical element with the symbol Sn.Tin has many uses. It takes a high polish and is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel. Alloys of tin are important, such as soft solder, pewter, bronze and phosphor bronze. A niobium-tin alloy is used for superconducting magnets.
Tin is a chemical element with symbol Sn.This silvery, malleable metal is not easily oxidized in air and is used to coat other metals to prevent corrosion. In 2006, about half of tin produced was used in solder. The rest was divided between tin plating, tin chemicals, brass and bronze, and niche uses
Held long enough, gallium will melt in the hand as it liquefies at temperature of 29.77 °C (85.59 °F) (slightly above room temperature). Its melting point is used as a temperature reference point. The alloy Galinstan (68.5% Ga, 21.5% In, 10% Sn) has an even lower melting point of −19 °C (−2 °F). From its discovery in 1875 until the semiconductor era, gallium was used primarily as an agent to make low-melting alloys.
A chemical analysis pinpoints Mesopotamia as the source of this glass bead, featuring inlaid eyes of yellow and white glass. The bead was discovered in a 3,400-year-old Danish grave. Credit: A. Mikkelsen, National Museum of DenmarkNews