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tin

(Encyclopedia)tin, metallic chemical element; symbol Sn [Lat. stannum]; at. no. 50; at. wt. 118.710; m.p. 231.9681℃; b.p. 2,270℃; sp. gr. 5.75 (gray), 7.3 (white); valence +2 or +4. Tin exhibits allotropy; abov...

Periodic Table of the Elements: Tin

(Encyclopedia)Periodic Table of the Elements: Tin ...

gunmetal

(Encyclopedia)gunmetal, a bronze, an alloy of copper, tin, and a small amount of zinc. Although originally used extensively for making guns (from which it received its name), it has been superseded by steel, and it...

tinstone

(Encyclopedia)tinstone: see tin.

Sn

(Encyclopedia)Sn, symbol for the element tin.

stannic

(Encyclopedia)stannic: a chemical compound containing tin in the +4 valence state. ...

stannous

(Encyclopedia)stannous: a chemical compound containing tin in the +2 valence state. ...

Babbitt metal

(Encyclopedia)Babbitt metal, an antifriction metal first produced by Isaac Babbitt in 1839. In present-day usage the term is applied to a whole class of silver-white bearing metals, or “white metals.” These all...

Gejiu

(Encyclopedia)Gejiu or Kokiu both: gô-jēo͞o [key], town (1994 est. pop. 216,400), S Yunnan prov., China. Site of the country's largest tin reserves, it is the great tin-mining center of China, with smelters and ...

bronze, in metallurgy

(Encyclopedia)bronze, in metallurgy, alloy of copper, tin, zinc, phosphorus, and sometimes small amounts of other elements. Bronzes are harder than brasses. Most are produced by melting the copper and adding the de...