a white, crystalline, water-soluble solid, (NH 4) 2 S 2 O 3 , used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
a white, crystalline, water-insoluble, poisonous solid, BaS 2 O 3 ⋅H 2 O, used chiefly in the manufacture of explosives, matches, paints, and varnishes.
