Tin(IV) sulfide is a compound with the

formula In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a ''chemical formula''. The informal use of the term ''formula'' in science refers to the general construct of a relationship betwee ...

. The compound crystallizes in the

cadmium iodide Cadmium iodide is the inorganic compound with the formula CdI2. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate. It has few applications. It is notable for its crystal structure, which is typical for compound ...

motif, with the Sn(IV) situated in "octahedral holes' defined by six sulfide centers. It occurs naturally as the rare

mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. ( ...

berndtite. It is useful as

semiconductor A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glas ...

material with

band gap In solid-state physics, a band gap, also called an energy gap, is an energy range in a solid where no electronic states can exist. In graphs of the electronic band structure of solids, the band gap generally refers to the energy difference (in ...

2.2 eV.

Reactions

The compound precipitates as a brown solid upon the addition of to solutions of tin(IV) species. This reaction is reversed at low pH. Crystalline has a bronze color and is used in decorative coatingHolleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. . where it is known as

mosaic gold Mosaic gold or bronze powder refers to tin(IV) sulfide as used as a pigment in bronzing and gilding wood and metal work. It is obtained as a yellow scaly crystalline powder. The alchemists referred to it as aurum musivum, or aurum mosaicum. The t ...

. The material also reacts with sulfide salts to give a series of

thiostannates Sulfidostannates, or thiostannates are chemical compounds containing anions composed of tin linked with sulfur. They can be considered as stannates with sulfur substituting for oxygen. Related compounds include the thiosilicates, and thiogermannat ...

with the formula . A simplified equation for this depolymerization reaction is : + → .

References

External links

Sulfides Tin(IV) compounds IV-VI semiconductors Dichalcogenides {{inorganic-compound-stub