Is Tin Magnetic? Understanding Its Magnetic Properties
Tin is a chemical element with the symbol Sn and atomic number 50. It is a soft, malleable, ductile, and highly crystalline silvery-white metal. When bent, a tin bar may emit a cracking sound known as the ‘tin cry,’ caused by the twinning of its crystals. Tin resists corrosion from water but can be corroded by acids and alkalis. It can be highly polished and is often used as a protective coating for other metals; a protective oxide layer prevents further oxidation. Approximately half of all tin produced is used in solder, with the remainder divided among tin plating, tin chemicals, brass and bronze alloys, and other niche applications.
Tin exists in two different allotropes: the commonly known white β-tin and the less useful grey α-tin, which is powdery. α-tin transforms into β-tin above 13.2°C, with the transformation accelerating at temperatures above 100°C. Addressing the question ‘is tin magnetic,’ the answer is no. β-tin is classified as a paramagnetic substance, meaning it is very weakly attracted by permanent magnets and can only become a weak magnet under the influence of a strong external magnetic field, with its attractive force only detectable by sensitive instruments. Meanwhile, α-tin is classified as a diamagnetic substance, meaning it is slightly repelled by magnetic fields, and thus, permanent magnets cannot adhere to it.
