bromine
Sign in to saveBromine is a chemical element; it has symbol Br and atomic number 35. It is a volatile red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties are intermediate between those of chlorine and iodine. Isolated independently by two chemists, Carl Jacob Löwig (in 1825) and Antoine Jérôme Balard (in 1826), its name was derived , referring to its sharp and pungent smell.
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Bromine is a chemical element (symbol Br, atomic number 35) that exists as a red-brown liquid at room temperature and easily evaporates into a colored vapor, with properties that fall between those of chlorine and iodine. The element gets its name from its sharp, pungent smell and was independently discovered by two chemists in the mid-1820s.
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Article
18 sectionsContents
- History
- Properties
- Isotopes
- Chemistry and compounds
- Hydrogen bromide
- Other binary bromides
- Bromine halides
- Polybromine compounds
- Bromine oxides and oxoacids
- Organobromine compounds
- Occurrence and production
- Applications
- Flame retardants
- Other uses
- Biological role and toxicity
- References
- General and cited references
- External links
Bromine is a chemical element; it has symbol Br and atomic number 35. It is a volatile red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties are intermediate between those of chlorine and iodine. Isolated independently by two chemists, Carl Jacob Löwig (in 1825) and Antoine Jérôme Balard (in 1826), its name was derived , referring to its sharp and pungent smell.
Elemental bromine is very reactive and thus does not occur as a free element in nature. Instead, it can be isolated from colourless soluble crystalline mineral halide salts analogous to table salt, a property it shares with the other halogens. While it is rather rare in the Earth's crust, the high solubility of the bromide ion (Br) has caused its accumulation in the oceans. Commercially the element is easily extracted from brine evaporation ponds, mostly in the United States and Israel. The mass of bromine in the oceans is about one three-hundredth that of chlorine.