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Hydrogen bromide is the inorganic compound with the formula HBr. It is a hydrogen halide consisting of hydrogen and bromine. A colorless gas, it dissolves in water, forming hydrobromic acid , which is saturated at 68.85% HBr by weight at room temperature.
Hydrobromic acid is an aqueous solution of hydrogen bromide.It is a strong acid formed by dissolving the diatomic molecule hydrogen bromide (HBr) in water. "Constant boiling" hydrobromic acid is an aqueous solution that distills at 124.3 °C (255.7 °F) and contains 47.6% HBr by mass, which is 8.77 mol/L. Hydrobromic acid is one of the strongest mineral acids known.
Bromide compounds, especially potassium bromide, were frequently used as sedatives in the 19th and early 20th centuries. Their use in over-the-counter sedatives and headache remedies (such as Bromo-Seltzer ) in the United States extended to 1975 when bromides were withdrawn as ingredients due to chronic toxicity . [ 14 ]
The simplest compound of bromine is hydrogen bromide, HBr. It is mainly used in the production of inorganic bromides and alkyl bromides , and as a catalyst for many reactions in organic chemistry. Industrially, it is mainly produced by the reaction of hydrogen gas with bromine gas at 200–400 °C with a platinum catalyst.
Molecular weight (M.W.) (for molecular compounds) and formula weight (F.W.) (for non-molecular compounds), are older terms for what is now more correctly called the relative molar mass (M r). [8] This is a dimensionless quantity (i.e., a pure number, without units) equal to the molar mass divided by the molar mass constant .
Molar mass: 20.006 g·mol −1 ... Hydrogen chloride Hydrogen bromide Hydrogen iodide ... Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula H F.
Molar mass: 108.966 g·mol −1 ... also known as ethyl bromide, is a chemical compound of the ... It is usually prepared by the addition of hydrogen bromide to ...
The compounds are similar to hydrochlorides. ... See also. Bromide, inorganic salts of hydrobromic acid; Bromine, the element Br; Free base (chemistry)