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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.
This is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula. This complements alternative listing at list of inorganic compounds . There is no complete list of chemical compounds since by nature the list would be infinite.
Barium sulfate – BaSO 4 [103] Barium sulfide – BaS [104] ... Nitrous oxide (dinitrogen monoxide, laughing gas, NOS) – N 2 O; Nitrogen pentafluoride – NF 5;
The barium derivative is useful in the gravimetric analysis of sulfate: if one adds a solution of most barium salts, for instance barium chloride, to a solution containing sulfate ions, barium sulfate will precipitate out of solution as a whitish powder. This is a common laboratory test to determine if sulfate anions are present.
Solutions of barium bromide reacts with the sulfate salts to produce a solid precipitate of barium sulfate. BaBr 2 + SO 2− 4 → BaSO 4 + 2 Br −. Similar reactions occur with oxalic acid, hydrofluoric acid, and phosphoric acid, giving solid precipitates of barium oxalate, fluoride, and phosphate, respectively.
Barium sulfate: Solid BaSO 4: −1473.3 Beryllium: Solid Be 0 Beryllium hydroxide: Solid Be(OH) 2: −903 Beryllium oxide: Solid BeO −609.4 Boron trichloride: Solid BCl 3: −402.96 Bromine: Liquid Br 2: 0 Bromide ion: Aqueous Br −: −121 Bromine: Gas Br 111.884 Bromine: Gas Br 2: 30.91 Bromine trifluoride: Gas BrF 3: −255.60 Hydrogen ...
The Ba 2+ ions compete with the K + ions, causing the muscle fibers to be electrically unexcitable, thus causing weakness and paralysis of the body. [3] Sodium sulfate and magnesium sulfate are potential antidotes because they form barium sulfate BaSO 4, which is relatively non-toxic because of its insolubility in water.
Like all soluble barium compounds, barium nitrate is toxic by ingestion or inhalation. [8] Solutions of sulfate salts such as Epsom salts or sodium sulfate may be given as first aid for barium poisoning, as they precipitate the barium as the insoluble (and non-toxic) barium sulfate. Inhalation may also cause irritation to the respiratory tract.