bromine
bromine
Definition
bro·mine (brō′mēn′, -min)
noun
a chemical element, one of the halogens, usually in the form of a reddish-brown, corrosive liquid, that volatilizes to form a vapor that has an unpleasant odor and is very irritating to mucous membranes: used in making dyes, in photography, and, in the form of certain compounds, in antiknock motor fuel: symbol, Br; at. no., 35
Etymology: Fr brome < Gr brōmos, stench + -ine
bromine
Usage Examples
Preposition: as
- electrophile: Bromine as an electrophile Again, the bromine is polarized by the approaching pi bond in the cyclohexene.
- disinfectant: The use of bromine as a disinfectant in hydrotherapy and other pool use has been a documented cause for concern for twenty years.
Converse of object
- use: Officers were at risk from sulphuric acid and bromine used to treat the water in the swimming pool.
- contain: CCl 4 ). Halons are compounds which contain bromine, which also destroys stratospheric ozone ( about 50 times more efficiently than chlorine!
- displace: More reactive halogens displace less reactive halogens from their solutions eg chlorine displaces bromine.
Adjective modifier
- liquid: The scientist has put some liquid bromine into the pipe on the right.
- aqueous: Know how to distinguish alkenes ( as unsaturated hydrocarbons ) from alkanes ( as saturated hydrocarbons ) using addition reactions with aqueous bromine.
- reactive: There is emerging evidence for the presence of reactive bromine and iodine in the troposphere.
- pure: You can, however, deduce it fairly easily if you know the mechanism for the addition of pure bromine.
- non-aqueous: So step ( 1 ) is the same for non-aqueous bromine, however step ( 2 ) is different!
- elemental: Dead Sea Bromine is the world's largest producer of elemental bromine, and makes bromine based flame retardants.
Modifies a noun
- atom: A bromine atom is being replaced by an OH group in an organic compound.
- molecule: Don't forget to write the words " induced dipole " next to the bromine molecule.
- compound: Such contacts have been observed in small molecule crystal structures of organic bromine compounds.
- water: How to identify an unsaturated molecule using bromine water.
- radical: These free radicals extract a hydrogen atom from a hydrogen bromide molecule to produce bromine radicals.
- transfer: It has been noted previously that gas-phase bromine transfer reactions are extremely fast.
Preposition: in
- presence: The halogenation of benzene Benzene reacts with chlorine or bromine in the presence of a catalyst.
- atmosphere: Anomalous high concentrations of particulate bromine in the atmosphere of the UK.
- reaction: What happens to that unit is exactly the same as happens to the bromine in the reaction involving HBr.
