hydrogen sulphide; hydrogen sulfide; sulphuretted hydrogen; sulfuretted hydrogen
mercury sulfide (esp. mercuric sulfide, HgS, but also mercurous sulfide, Hg2S) (sulphide)
iron sulfide; iron sulphide
antimony sulfide; antimony sulphide
vulcanized rubber; vulcanised rubber
cadmium sulfide (CdS) (sulphide)
zinc sulfide (ZnS) (sulphide)