Overview

Luminol (LOO-min-ol) is a substance that glows when it come in contact with blood. It was discovered in the late nineteenth century, but chemists found little use for the compound for half a century. Then, in 1928, the German chemist H. O. Albrecht found that the addition of hydrogen peroxide to luminol produces a bluish-green glow, an example of the phenomenon known as chemiluminescence. Chemiluminescence is the process by which light is emitted as the result of a chemical reaction. Albrecht found that the reaction between hydrogen peroxide and luminol required a catalyst, a small amount of a metal such as copper or iron.

Key Facts

Other Names:

5-amino-2,3-dihydro-1,4-phthalazinedione; 3-aminophthalhydrazide

Formula:

C₈H₇N₃O₂

Elements:

Carbon, hydrogen, nitrogen, oxygen

Compound Type:

Heterocyclic ring (organic)

State:

Solid

Molecular Weight:

177.16 g/mol

Melting Point:

319°C to 320°C (606°F to 608°F)

Boiling Point:

Not applicable; decomposes

Solubility:

Slightly...