[′kal·se·əm ′səl‚fīt] (inorganic chemistry) CaSO3·2H2O A white powder that is soluble in dilute sulfurous acid; may be dehydrated at 150°C to the anhydrous salt; used in the sulfite process for the manufacture of wood pulp.
calcium sulfite
cal·ci·um sul·fite
used as an intestinal antiseptic, and locally in the treatment of parasitic skin diseases.