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The composition by weight is typically about 92–93% tin, 5–6% antimony, and 2% copper. [3] [4] Some sources use the terms "Britannia metal" and "britannium" to mean different things. [5] Britannia metal is usually spun rather than cast, [1] and melts at 255 degrees Celsius. [6]
Antimony is a chemical element; it has symbol Sb (from Latin stibium) and atomic number 51. A lustrous grey metal or metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3). Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name kohl. [11]
With sulfide ores, the method by which antimony is produced depends on the amount of antimony in the raw ore. If the ore contains 25% to 45% antimony by weight, then crude antimony is produced by smelting the ore in a blast furnace. If the ore contains 45% to 60% antimony by weight, antimony is obtained by heating the ore, also known as ...
Perpetua Resources, which is building a U.S. antimony and gold project with support from the Pentagon, had planned to begin production by 2028, but is studying ways to produce antimony faster in ...
A sort made from type metal. In printing, type metal refers to the metal alloys used in traditional typefounding and hot metal typesetting.Historically, type metal was an alloy of lead, tin and antimony in different proportions depending on the application, be it individual character mechanical casting for hand setting, mechanical line casting or individual character mechanical typesetting and ...
Bismuth antimonides, Bismuth-antimonys, or Bismuth-antimony alloys, (Bi 1−x Sb x) are binary alloys of bismuth and antimony in various ratios.. Some, in particular Bi 0.9 Sb 0.1, were the first experimentally-observed three-dimensional topological insulators, materials that have conducting surface states but have an insulating interior.
Shot is a collective term for small spheres or pellets, often made of lead. These have been projected from slings since ancient times and were the original projectiles for shotguns and are still fired primarily from shotguns and grenade launchers , while they are less commonly used in riot guns .
Lists of metalloids differ since there is no rigorous widely accepted definition of metalloid (or its occasional alias, 'semi-metal'). Individual lists share common ground, with variations occurring at the margins. The elements most often regarded as metalloids are boron, silicon, germanium, arsenic, antimony and tellurium.