![]() The process is often described simplistically as involving formation of the hydronium salt of bromide: Hydrogen bromide, which is a diatomic molecule, takes on salt-like properties upon contact with water to give an ionic solution called hydrobromic acid. The classic case is sodium bromide, which fully dissociates in water: Formation and reactions of bromide Dissociation of bromide salts īromide salts of alkali metal, alkaline earth metals, and many other metals dissolve in water (and even some alcohols and a few ethers) to give bromide ions. In addition to silver, bromine is also in minerals combined with mercury and copper. Bromargyrite-natural, crystalline silver bromide-is the most common bromide mineral known but is still very rare. ![]() Seafood and deep sea plants generally have higher levels than land-derived foods. Natural occurrence īromide is present in typical seawater (35 PSU) with a concentration of around 65 mg/L, which is about 0.2% of all dissolved salts. The bromide ion has an ionic radius of 196 pm. Bromide toxicity can also cause a type of skin eruption, see potassium bromide. ![]() Although uncommon, chronic toxicity from bromide can result in bromism, a syndrome with multiple neurological symptoms. Bromides have many practical roles, being found in anticonvulsants, flame-retardant materials, and cell stains. A bromide ion is the negatively charged form ( Br −) of the element bromine, a member of the halogens group on the periodic table.
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