Antimony

Photograph of stibnite courtesy of Mineralite
Generally found in one of two allotropes and has both metallic and non-metallic properties. From latin 'antimonium' used by Constantinius Africanus (c. 1050) to refer to Stibnite. The main source of this element is Stibnite (Sb2 S3), a widely distributed but not very plentiful ore. Antimony is a relatively stable element and is not attacked by dilute acids or alkalis. It is a poor electrical and thermal conductor. Applications of antimony and its alloys include its use as an alloying element for hardening other metals, a bearing material and in batteries. High purity antimony is used in the semiconductor industry.


Symbol
Sb

Discovered
1450

Abundance
0.2 ppm of the Earth’s crust.

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Atomic number 51 Clip
Atomic / Molecular Weight 121.75 gmol-1Clip
Density 6692 kgm-3Clip
Lattice constant 451 fmClip
Melting Point 904 KClip
Boiling Point 1873 KClip
Linear expansivity 0.000011 K-1Clip
Specific heat capacity 209 Jkg-1K-1Clip
Latent heat of fusion 164000 Jkg-1Clip
Thermal conductivity 25.5 Wm-1K-1Clip
Bulk Modulus of Rigidity 42000000000 Nm-2Clip
Electromotive Series -0.1 VClip
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See also: Antimony Hydride, Antimony Pentachloride, Antimony Pentafluoride, Antimony Tetroxide, Antimony Tribromide, Antimony Trichloride, Antimony Trifluoride, Antimony Triiodide, Antimony Trioxide, Antimony Triselenide, Antimony V Oxide, Periodic Table, Pewter.

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Subjects: Chemistry