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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 .
2 nh 4 clo 3 + baco 3 → ba(clo 3) 2 + 2 nh 3 + h 2 o + co 2 The reaction initially produces barium chlorate and ammonium carbonate ; boiling the solution decomposes the ammonium carbonate and drives off the resulting ammonia and carbon dioxide, leaving only barium chlorate in solution.
BaCl 2 + 2 NaOH → 2 NaCl + Ba(OH) 2. BaCl 2 ·2H 2 O is stable in the air at room temperature, but loses one water of crystallization above 55 °C (131 °F), becoming BaCl 2 ·H 2 O, and becomes anhydrous above 121 °C (250 °F). [2] BaCl 2 ·H 2 O may be formed by shaking the dihydrate with methanol. [3] BaCl 2 readily forms eutectics with ...
It forms as white crystals from a melt of BaCl 2, BaCO 3 and TiO 2 [4] or from just sintering BaCO 3 and TiO 2. [5] Another method of preparation is heating pellets of Ba(OH) 2 and TiO 2. [6] Additionally, there are polymer precursor, sol-gel and reverse micellar routes to Ba 2 TiO 4 synthesis. [3]
Na 3 AlF 6: One of the few sodium salts that is nonhygroscopic and insoluble in water. Green Barium chloride: BaCl 2: Green Barium chlorate: Ba(ClO 3) 2: Classic exhibition green with shellac fuel. Sensitive to shock and friction. Oxidizer. Green Barium carbonate: BaCO 3: A pretty color when ammonium perchlorate is used as oxidizer. Green ...
Barium bromide – BaBr 2; Barium carbonate – BaCO 3 [85] Barium chlorate – Ba(ClO 3) 2 [86] Barium chloride – BaCl 2 [87] Barium chromate – BaCrO 4 [88 ...
The barium ions are coordinated by six water oxygen atoms at 2.919Å and six perchlorate oxygens at 3.026Å in a distorted icosahedral arrangement. The perchlorate fails by a narrow margin to have regular tetrahedral geometry, and has an average Cl-O bond length of 1.433Å.
The standard Gibbs free energy of formation (G f °) of a compound is the change of Gibbs free energy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 bar of pressure and the specified temperature, usually 298.15 K or 25 °C).