Bismuth(III) sulfide

• Bismuth sulfide
• Dibismuttrisulfid
• Sulfur bismuth (deprecated)

Dark brown solid

Fixed

6.78 g · cm -3

685 ° C (other source 850 ° C)

Insoluble in water

Attention

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Bismuth ( III ) sulfide is a chemical compound of bismuth and sulfur.

Occurrence

Bismuth sulfide occurs naturally in the mineral bismuthinite. It is believed that it occurs as a thin layer on mountains Venus.

Production and representation

Bismuth sulfide can (III ) salts are shown with a hydrogen sulfide solution in a precipitation reaction of bismuth.

Properties

Bismuth sulfide has a trigonal prismatic crystal structure. It also has 1.6 · 10-72 one of the smallest solubility of all chemical compounds.

Use

As bismuth sulfide mineral is used as a starting material for the preparation of bismuth. Furthermore, it is used as an additive in the brake pads, as a catalyst, as components of fluxes in arc welding, and as a component in the initiating charges of ammunition. Bismuth sulfide thin films and nanotubes are being researched at the time as a high performance catalyst.