Antimony trisulfide

Items Chemical Constituent(%)
Sb S impurity(%)≤
Sb2S3-0 71.0-72.5 26.5-28.0 0.3
Sb2S3-1 70.0-73.0 26.0-28.3 0.55
Sb2S3-2 69.0-73.0 26.0-28.3 0.55
Antimony trisulfide (Sb2S3) is found in nature as the crystalline mineral stibnite and the amorphous red mineral metastibnite. It is manufactured for use in safety matches, military ammunition, explosives and fireworks. It also is used in the production of ruby-colored glass and in plastics as a flame retardant.[4] Historically the stibnite form was used as a grey pigment in paintings produced in the 16th century. It is a semiconductor with a direct band gap of 1.8-2.5 eV.[citation needed] With suitable doping, p and n type materials can be produced.
Chemical formula: Sb2S3
Molar mass: 339.715
Appearance: grey / black orthorhombic crystal (stibnite)
Density: 4.562g cm−3 (stibnite)
Melting point: 550 °C (1,022 °F; 823 K) (stibnite)
Boiling point: 1,150 °C (2,100 °F; 1,420 K)
Solubility in water:0.00017 g/100 mL (18 °C)
Magnetic susceptibility (χ):-86.0·10−6 cm3/mol
Refractive index (nD):4.046


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