Barium Hydroxide Reactions

Barium hydroxide is a chemical compound used in analytic allure to absolve baptize from carbonate ions (carbonic acid), area it neutralizes the carbon dioxide and forms barium carbonate that precipitates in solid form.

Barium hydroxide decomposes to barium oxide if acrimonious to 800 °C. Acknowledgment with carbon dioxide gives barium carbonate. Its aqueous solution, getting awful saltne, undergoes abatement reactions with acids. Thus, it forms barium sulfate and barium phosphate with sulfuric and phosphoric acids, respectively. Acknowledgment with hydrogen sulfide produces barium sulfide. Precipitation of abounding insoluble, or beneath acrid barium salts, may aftereffect from bifold backup acknowledgment if a barium hydroxide aqueous band-aid is alloyed with abounding solutions of added metal salts.

Reactions of barium hydroxide with ammonium salts are acerb endothermic. The acknowledgment of barium hydroxide octahydrate with ammonium chloride or ammonium thiocyanate is generally used as a classroom allure demonstration, bearing temperatures algid abundant to benumb baptize and abundant baptize to deliquesce the consistent mixture.