Chemistry for Non-Specialists Course Book: Halogen reactions with iron
In this demonstration experiment, iron wool is heated in the presence of chlorine gas and the vapours of bromine and iodine. Exothermic redox reactions occur, causing the iron wool to glow. Iron(III) halides (FeX3) are formed as coloured solids.
Visit our website for more information on the RSC's Chemistry for Non-Specialists CPD courses.