One of the elements, related in its chemical qualities to chlorine and iodine. Atomic weight 79.8. Symbol Br. It is a deep reddish brown liquid of a very disagreeable odor, emitting a brownish vapor at the ordinary temperature. In combination it is found in minute quantities in sea water, and in many saline springs. It occurs also in the mineral bromyrite.
- 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. See Table at element.