Tin disulfide, Stannic sulfide, Mosaic gold
3D model (JSmol)
|Molar mass||182.83 g·mol−1|
|Melting point|| 600 °C (1,112 °F; 873 K) |
|Solubility||Soluble in aq. alkalis, decompose in aqua regia|
Insoluble in alkyl acetates, acetone
|P3m1, No. 164|
a = 3.65 Å, c = 5.88 Å
α = 90°, β = 90°, γ = 120°
|GHS signal word||Warning|
|H302, H312, H315, H319, H332, H335|
|P261, P280, P301+312, P302+352, P304+340, P305+351+338, P332+313|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Tin(IV) sulfide is a compound with the formula SnS
2. The compound crystallizes in the cadmium iodide motif, with the Sn(IV) situated in "octahedral holes' defined by six sulfide centers. It occurs naturally as the rare mineral berndtite. It is useful as semiconductor material with band gap 2.2 eV.
The compound precipitates as a brown solid upon the addition of H
2S to solutions of tin(IV) species. This reaction is reversed at low pH. Crystalline SnS
2 has a bronze color and is used in decorative coating where it is known as mosaic gold.
The material also reacts with sulfide salts to give a series of thiostannates with the formula [SnS
n. A simplified equation for this depolymerization reaction is
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