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Characteristic
Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3).
Phase at STP：solid
Appearance：silvery lustrous gray
Melting point：903.78 K (630.63 °C, 1167.13 °F)
Boiling point：1908 K (1635 °C, 2975 °F)
Density (near r.t.)：6.697 g/cm3
when liquid (at m.p.)： 6.53 g/cm3
Heat of fusion：19.79 kJ/mol
Heat of vaporization：193.43 kJ/mol
Molar heat capacity：25.23 J/(mol·K)
Application
The largest applications for metallic antimony are an alloy with lead and tin and the lead antimony plates in lead–acid batteries. Alloys of lead and tin with antimony have improved properties for solders, bullets, and plain bearings. Antimony compounds are prominent additives for chlorine and bromine-containing fire retardants found in many commercial and domestic products. An emerging application is the use of antimony in microelectronics.
Characteristic
Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3).
Phase at STP：solid
Appearance：silvery lustrous gray
Melting point：903.78 K (630.63 °C, 1167.13 °F)
Boiling point：1908 K (1635 °C, 2975 °F)
Density (near r.t.)：6.697 g/cm3
when liquid (at m.p.)： 6.53 g/cm3
Heat of fusion：19.79 kJ/mol
Heat of vaporization：193.43 kJ/mol
Molar heat capacity：25.23 J/(mol·K)
Application
The largest applications for metallic antimony are an alloy with lead and tin and the lead antimony plates in lead–acid batteries. Alloys of lead and tin with antimony have improved properties for solders, bullets, and plain bearings. Antimony compounds are prominent additives for chlorine and bromine-containing fire retardants found in many commercial and domestic products. An emerging application is the use of antimony in microelectronics.
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