I-barium sulfide (BaS) — inhlanganisela emhlophe kuya kophuzi etholakala ngokunciphisa i-barium sulfate ngekhabhoni. Isetshenziswa njengesandulela se-lithopone (umbala omhlophe) nasekulungiseleleni ezinye izinhlanganisela ze-barium. Inobuthi futhi ikhipha igesi ye-hydrogen sulfide uma ihlangana nama-acid.