Tin(II) sulfide Tin(II) sulfide Tin(II) sulfide is a chemical compound of tin and sulfur. The chemical formula is SnS. Its natural occurrence concerns herzenbergite (α-SnS), a rare mineral. At elevated temperatures above 905K, SnS undergoes a second order phase transition to β-SnS (space group: cmcm, No. 63). in recent years, it has become evident that a new polymorph of SnS exist based upon the cubic crystal system, π-SnS (space group: P23, No. 198). Tin(II) sulfide can be prepared by reacting tin with sulfur, or tin(II) chloride with hydrogen sulfide. Tin(II) sulfide is a dark brown or black solid, insoluble in water, but
A Boyar Wedding Feast A Boyar Wedding Feast Konstantin Makovsky was a Russian realist painter who opposed academic restrictions. His paintings venerate Russia's old world customs. "A Boyar Wedding Feast" is painted as a scene from the seventeenth-century – depicting the old way of Russian life, bringing back memories of the cherished past. "A Boyar Wedding Feast" is an oil on canvas painting measuring , set in either the 16th or 17th century, in which a room of guests are depicted toasting a newlywed couple. A traditionally offered boyar wedding toast is meant to encourage the first kiss to make the wine sweeter. The