Antimony

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  • (chemistry)

Atomic Number: 51
Atomic Symbol: Sb
Atomic Weight: 121.75
Electron Configuration: [Kr]5s24d105p3

History
(Gr. anti plus monos - a metal not found alone) Antimony was recognized in compounds by the ancients and was known as a metal at the beginning of the 17th century and possibly much earlier.

Sources
It is not abundant, but is found in over 100 mineral species. It is sometimes found native, but more frequently as the sulfide stibnite.

Properties
It is a poor conductor of heat and electricity. Antimony and many of its compounds are toxic.

Uses
Antimony is finding use in semiconductor technology for making infrared detectors, diodes and Hall-effect devices. It greatly increases the hardness and mechanical strength of lead. Batteries, antifriction alloys, type metal, small arms and tracer bullets, cable sheathing, and minor products use about half the metal produced. Compounds taking up the other half are oxides, sulfides, sodium antimonate, and antimony trichloride. These are used in manufacturing flame-proofing compounds, paints ceramic enamels, glass, and pottery.

Sources: CRC Handbook of Chemistry and Physics and the American Chemical Society.

  • (geology) Metallic antimony is an extremely brittle metal with a flaky, crystalline texture. Symbol, Sb. Sometimes found native, but more frequently as the sulfide, stibnite (Sb2 S3 ). Used in semiconductors, batteries, antifriction alloys, type metal, small arms, tracer bullets, cable sheathing, flame-proofing compounds, paints, ceramics, glass, and pottery. Antimony and many of its products are toxic. Handbook of Chemistry and Physics, 3
    Source: Dictionary of Mining, Mineral, and Related Terms


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