Solutions of tin ( II)
chloride can also serve simply as a source of Sn 2+ ions, which can form other tin (II) compounds via
precipitation reactions, for example brown (or black) tin (II) sulfide:
Unfortunate Confrontation
with ÒLe PewÓ
![](slide0027_image071.png)
SnCl2(aq) + Na2S(aq) → SnS(s) + 2 NaCl(aq)
stannous sulfide (′stanáəs ′səl′fīd) SnS Dark crystals; insoluble in water, soluble (with
decomposition) in concentrated hydrochloric acid; melts at 880¡C; used
as an analytical reagent and catalyst, and in bearing material.
Also known as tin monosulfide; tin protosulfide;
tin sulfide.