Luminol, 5g For Sale
A versatile substance called uminol exhibits chemiluminescence when combined with the right oxidizing agent. It comes in the form of a whitish-yellow crystalline powder that dissolves in water solutions with a high pH (potassium hydroxide added). 625 cc of solution can be made from five grams of luminol.
Forensic investigators employ luminol to identify blood traces because, when combined appropriately, it will react with the iron found in hemoglobin. Additionally, biologists employ it in cellular assays to check for the presence of cyanides, iron, and copper.
How to Make a Blue Glow Using Catalysts and Luminol
Luminol powder is combined with a liquid containing hydrogen peroxide, a hydroxide such as potassium hydroxide, and a catalyst such as potassium ferricyanide to create a blue luminous reaction. The mixture’s blue glow serves as proof that the catalyst, which speeds up the chemiluminescence reaction, is present. (For the forensic scientist, iron in hemoglobin, or iron in the potassium ferricyanide in our lab mixture.)
Combine 1g luminol, 8g potassium hydroxide, and 125ml water in SOLUTION A.
Mix 3% hydrogen peroxide (a typical store-bought quantity) with a tiny bit (around 0.1g) of potassium ferricyanide to serve as a catalyst as part of SOLUTION B.
PROCEDURE: To activate the blue glow, add 10 ml of Solution B to a transparent test tube or small beaker containing 10 ml of Solution A.
Instead of using iron, you may use copper and its compounds (like copper sulphate), horseradish, or bleach to accelerate the luminol process.