Bromo is a prefix referring to the element Bromine.
In 1916, Moles studied with Prof. Philippe A. Guye at the University of Geneva to establish the atomic weight of bromine, and he received the degree Doctor of Physics from the University of Geneva that year.
David Alter displayed a method to manufacture and purify bromine from salt wells, highly useful in the iron industry
Dow Chemical quickly moved to fill the gap, producing magnesium for incendiary flares, monochlorobenzene and phenol for explosives, and bromine for medicines and tear gas.
Bromine monochloride, also called bromine(I) chloride, bromochloride, and bromine chloride, BrCl