: The compound precipitates as a brown solid upon the addition of to solutions containing tin(IV) species. This reaction is reversed at low
pH. It can also be prepared by heating finely ground Sn with excess sulfur. The compound crystallizes in the
cadmium iodide motif, with the Sn(IV) situated in "octahedral holes' defined by six sulfide centers. The material reacts with sulfide salts to give a series of
thiostannates with the formula . A simplified equation for this depolymerization reaction is: :{{chem2|SnS2 + S^{2-} → }} {{chem2|[SnS3^{2-}]_{
x} }} == Potential uses ==