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Barium carbonate is the inorganic compound with the formula BaCO 3. Like most alkaline earth metal carbonates, it is a white salt that is poorly soluble in water. It occurs as the mineral known as witherite. In a commercial sense, it is one of the most important barium compounds. [5]
Barium carbide can be synthesized as an impure compound by reducing barium carbonate powder with metallic magnesium in the presence of carbon. [3] Barium carbide can also be made by reducing carbon dioxide with hot barium metal at 600°C. [4] These methods are used because of their high yield, and because the carbide is used to make acetylene.
BaMnO 4: barium manganate: 7787–35–1 Ba(MnO 4) 2: barium permanganate: 7787–36–2 BaMoO 4: barium molybdate: 7787–37–3 Ba(NO 2) 2: barium nitrite: 13465–94–6 Ba(NO 3) 2: barium nitrate: 10022–31–8 BaN 6: barium azide: 18810–58–7 Ba(NbO 3) 2: barium niobate: 12009–14–2 BaO: barium oxide: 1304–28–5 Ba(OH) 2: barium ...
Witherite is a barium carbonate mineral, Ba C O 3, in the aragonite group. [2] Witherite crystallizes in the orthorhombic system and virtually always is twinned. [2] The mineral is colorless, milky-white, grey, pale-yellow, green, to pale-brown. The specific gravity is 4.3, which is high for a translucent mineral. [2]
Barium selenide can be obtained by the reduction of barium selenate in hydrogen flow:. [3] [5] BaSeO 4 + H 2 → BaSe + 4 H 2 O. It can also be obtained by reacting selenium with barium carbonate or barium oxide at high temperature: [citation needed] 2 BaCO 3 + 5 Se → 2 BaSe + 3 SeO 2 + CO 2
Barium oxide from metalic barium readly forms from its exothermic oxidation with dioxygen in air: 2 Ba(s) + O 2 (g) → 2 BaO(s). It's most commonly made by heating barium carbonate at temperatures of 1000–1450 °C. BaCO 3 (s) → BaO(s) + CO 2 (g) Likewise, it is often formed through the thermal decomposition of other barium salts, [6] like ...
Barium acetate is generally produced by the reaction of acetic acid with barium carbonate: [2] BaCO 3 + 2 CH 3 COOH → (CH 3 COO) 2 Ba + CO 2 + H 2 O. The reaction is performed in solution and the barium acetate crystalizes out at temperatures above 41 °C. Between 25 and 40 °C, the monohydrate version crystalizes. Alternatively, barium ...
Barium hydroxide is used in analytical chemistry for the titration of weak acids, particularly organic acids. Its aqueous solution, if clear, is guaranteed to be free of carbonate, unlike those of sodium hydroxide and potassium hydroxide, as barium carbonate is insoluble in water.