Iron(III) bromide is the chemical compound with the formula FeBr3. Also known as ferric bromide, this red-brown odorless compound is used as a Lewis acid catalyst in the halogenation of aromatic compounds. It dissolves in water to give acidic solutions.
Molar mass：295.56 g mol−1
Density：4.50 g cm−3
Melting point：200 °C (392 °F; 473 K) (decomposes)
Crystal structure：Trigonal, hR24
Ferric bromide is occasional use as an oxidant in organic chemistry, e.g. for the conversion of alcohols to ketones. It is used as a Lewis acidic catalyst for bromination of aromatic compounds. For the latter applications, it is often generated in situ.