Bromine
From BiblePortal Wikipedia
Webster's Dictionary [1]
(n.) 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.
The Nuttall Encyclopedia [2]
An elementary fluid of a dark colour and a disagreeable smell, extracted from bittern, a liquid which remains after the separation of salt.