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Barium is a chemical element; it has symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. The most common minerals of barium are barite (barium sulfate, BaSO 4) and witherite (barium carbonate ...
Barium sulfate (or sulphate) is the inorganic compound with the chemical formula Ba SO 4. It is a white crystalline solid that is odorless and insoluble in water. It occurs in nature as the mineral barite, which is the main commercial source of barium and materials prepared from it. Its opaque white appearance and its high density are exploited ...
Barium oxide, also known as baria, is a white hygroscopic non-flammable compound with the formula BaO. It has a cubic structure and is used in cathode-ray tubes , crown glass, and catalysts. It is harmful to human skin and if swallowed in large quantity causes irritation.
Barium chloride is an inorganic compound with the formula Ba Cl 2. It is one of the most common water-soluble salts of barium . Like most other water-soluble barium salts, it is a white powder, highly toxic, and imparts a yellow-green coloration to a flame.
Solid properties Std enthalpy change of formation, Δ f H o solid: −548.10 kJ/mol Standard molar entropy, S o solid: 72.05 J/(mol K) Heat capacity, c p: 47.3 J/(mol K) Liquid properties Std enthalpy change of formation, Δ f H o liquid: −491.63 kJ/mol Standard molar entropy, S o liquid: 96.54 J/(mol K) Heat capacity, c p? J/(mol K) Gas ...
Properties Chemical formula. Ba(NO 3) 2 ... Barium nitrate is the inorganic compound with the chemical formula Ba(NO 3) 2. It, like most barium salts, is colorless ...
Barium hydroxide is a chemical compound with the chemical formula Ba(OH) 2. The monohydrate ( x = 1), known as baryta or baryta-water, is one of the principal compounds of barium . This white granular monohydrate is the usual commercial form.
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.