Anhydrous Property: White crystal or powder, soluble in water, slightly soluble in nitric acid, hydrochloric acid, slightly soluble in alcohol.
Dihydrate Property: White crystal or powder, containing two crystal water. Losing two crystal water at exceeding 113ºC, bitter taste, noxious, soluble in water, slightly soluble in alcohol, insoluble in ether.Anhydrous Usage: in metallurgy industry, in chemical industry, as dehydrating agent, analysis reagent, heat treatment agent.
Dihydrate Usage: in chemical industry, in textile and leather industry, in mechanical industry, as material to product barium salt, as mordant, delustering agent, heat treatment agent.