Antimony Trisulphide

Product name:Antimony Trisulphide

CAS:1345-04-6

Molecular formula:SB2S3 (Sb4S6)

Molecular weight:291.52

Product description:Antimony is a semi-metallic chemical element in Group Va of the periodic table; symbol Sb, atomic number 51; atomic mass 121.75; melting point ca 630.7 C; boiling point at  1,750 C; specific gravity 6.69 at 20 C; valence 0, +3, -3, or +5.; electronic config. [Kr]4d10 5s2 5p3. There are four allotropic forms. The common and stable form is a very brittle, blue-white, hexagonal mineral and has a rhombohedral crystalline structure. Yellow and black antimony shows the properties of unstable non-metals. It is a poor conductor of heat and electricity and is easily powdered to be used by itself.  The chief ore of antimony is stibnite (Sb2S3, antimony trisulfide) which is produced in China and covers three-fourths of the world's mined antimony. It is also found in isomorphous mixture with arsenic, as allemonite.