What is Bromine?
A heavy, volatile, corrosive, reddish-brown, nonmetallic liquid element, having a highly irritating vapor. It is used in producing gasoline antiknock mixtures, fumigants, dyes, and photographic chemicals. Atomic weight 79.904; atomic number 35; melting point 7.2°C; boiling point 58.78°C; valence 1, 3, 5, 7.
Bromine is the only liquid nonmetallic element at room temperature and one of five elements on the period table that are liquid at or close to room temperature. The pure chemical element has the physical form of a diatomic molecule, Br2. It is a heavy, mobile, reddish-brown liquid, that evaporates easily at standard temperature and pressures in a red vapor (its color resembles nitrogen dioxide) that has a strong disagreeable odor resembling that of chlorine. A halogen, bromine resembles chlorine chemically but is less active. It is more active than iodine, however. Bromine is slightly soluble in water, and highly soluble in carbon disulfide, aliphatic alcohols (such as methanol), and acetic acid. It bonds easily with many elements and has a strong bleaching action.
Bromine is highly reactive and is a powerful oxidizing agent in the presence of water. It reacts vigorously with amines, alkenes and phenols as well as aliphatic and aromatic hydrocarbons, ketones and acids (these are brominated by either addition or substitution reactions). With many of the metals and elements, anhydrous bromine is less reactive than wet bromine; however, dry bromine reacts vigorously with aluminium, titanium, mercury as well as alkaline earth metals and alkaline metals.
Due to its contribution to ozone depletion in Earth's atmosphere, bromine has been evaluated to have an ozone depletion potential of 60 when compared to chlorine.[1]
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Relevant sites for Bromine:
lectdemosbromine
Does liquid bromine react with either cyclohexane or cyclohexene? cyclohexane left, bromine in middle and cyclohexene on right ...
electrophilic addition - unsymmetrical alkenes and bromine
Facts and mechanism for the electrophilic addition reaction between unsymmetrical alkenes like propene and bromine (and the other halogens)
Chemistry : Periodic Table : bromine : index
This WebElements periodic table page contains index for the element bromine.
Bromine - Wikipedia, the free encyclopedia
Properties of the element, including its history, applications, and characteristics.
Periodic Table of Elements: Bromine - Br
Comprehensive information for the element Bromine - Br is provided by this page including scores of properties, element names in many languages, ...
Bromine
The liquid halogen bromine was extracted from seawater in 1826 by ... Bromine - acetic acid reagent is used for organic synthesis in CHM 230 and 235. ... |
