Terbium monosulfide is a binary inorganic compound of terbium and sulfur with the chemical formula TbS.[1][2]
Terbium monosulfide can be synthesised by heating stoichiometric amounts of pure substances in an inert atmosphere:[3]
Terbium monosulfide forms crystals of cubic system, space group Fm3m, isomorphous with NaCl.[4][5]