Luminol How long does the reaction last and can you redo the reaction by adding more blood? And does the reaction create electricity/energy? Asked by Nsp6115 13 years ago 7/25/2012 8:31 AM Last updated by anonymous 13 years ago 12/26/2012 11:15 PM
The reactant in Luminol is the reaction to the iron in the hemoglobin in blood. So, theoretically, more blood, more reaction. Luminol can be used on bloodstains that are as old as 3 years or more.
