The First Course By Lecturer Sinan Midhat Al Bayati Asst Prof Anaam Majeed Rasheed Asst Lecturer AlAmeen Bariz Omar Supervised by Dr Rehab AbdulMahdi AlHassan Experiment No 7 ID: 1007047
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1. Inorganic ChemistryPractical IIThe First CourseByLecturer Sinan Midhat Al-BayatiAsst. Prof. Anaam Majeed RasheedAsst. Lecturer Al-Ameen Bariz Omar Supervised by:Dr. Rehab AbdulMahdi Al-Hassan
2. Experiment No. (7)Preparation of Barium Chloride Di-Hydrate BaCl2.2H2OPreparation of Barium Chloride Di-Hydrate BaCl2.2H2OBarium chloride is an inorganic compoundwhose formulais BaCl2. It is one of the most common water-soluble salts of barium. Like other barium salts, it is toxic and imparts a yellow-green coloration to a flame. It is also hygroscopic.Preparation:Barium chloride can be prepared from barium hydroxide or barium carbonate, with barium carbonate being found naturally as the mineral witherite. These basic salts react with hydrochloric acid to give hydrated barium chloride. On the industrial scale, it is prepared via two-step process from barite (barium sulfate):BaSO4(s) + 4 C(s) → BaS(s) + 4 CO(g)The first step requires high temperatures.BaS + CaCl2 → BaCl2 + CaSThe second step requires fusion of the reactants. BaCl2 can then be leached out from the mixture with water. From water solutions of barium chloride, the dihydrate can be crystallized as white crystals: BaCl2·2H2O.
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