It is crystallised twice from water (2mL/g) and dried in an oven to constant weight. The solubilities of the hydrate (% of anhydrous wt) in H2O are 31.6 at 0o, 35.7 at 20o and 58.7 at 100o.
White crystalline solid with a bitter, salty taste.
Barium chloride dihydrate may react violently with BrF3 and 2-furan percarboxylic acid in its anhydrous form.
Air & Water Reactions
Barium chloride is a white/colourless solid and stable under ordinary conditions of use
and storage. It is incompatible with bromine trifluoride and 2-furan percarboxylic acid
Flash point data for Barium chloride dihydrate are not available. Barium chloride dihydrate is probably combustible.
Barium chloride dihydrate is recrystallized from the water solutions of barium chloride. Barium chloride is used for the test of sulfate ions, for making pigment, for the purification of brine solution, in the manufacture of heat treating bath, and in the fireworks for green color. Barium Chloride is also used to set up porcelain enamels for sheet steel and to produce blanc fixe. Together with various matrices, barium chloride is used to fabricate novel ammonia sorbents for adsorptive heat transformation. Furthermore, barium chloride is used to modify the microstructure of polyvinyl alcohol (PVA) polymer films which have rich variety of applications.
ChEBI: A hydrate that is the dihydrate form of barium chloride.
 J.V. Veselovskaya, M.M. Tokarev and Yu. I. Aristov, Novel ammonia sorbents ‘‘porous matrix modified by active salt” for adsorptive heat transformation 1. Barium chloride in various matrices, Applied Thermal Engineering, 2010, vol. 30, 584-589
 R.F. Bhajantri, V. Ravindrachary, A. Harisha, C. Ranganathaiah and G.N. Kumaraswamy, Effect of barium chloride doping on PVA microstructure: positron annihilation study, Applied Physics A, 2007, vol. 87, 797-805
 Daniel C. Hall and Edward F. Steinbring, Process of making pigment barium sulphate from barium chloride, Patent, 1935
 Paul H. Ralston and Charles T. Roland, Method of preparing sodium chloride brine of high purity, Patent, 1954
 Alber Erdmann and Elli Boelke, Salt bath for heat treating carbon alloyed steel, Patent, 1954