Description General description Barium chloride (BaCl2) is a water soluble ionic compound that is hygroscopic in nature. It can be prepared from barium hydroxide or barium carbonate and can also be naturally found as witherite. Application BaCl2 has a variety of industrial and laboratory applications which include its use as a test for sulfate ion, synthesis of pigments, and manufacturing of pharmaceuticals. Packaging 5, 25 g in ampule