@chemicalkim: What is inside a Glow Stick? #Chemiluminescence #Chemistry #HalloweenScience Inside a glow stick, there's a chemical reaction that produces light without heat, known as chemiluminescence. The glow stick consists of a plastic tube containing a hydrogen peroxide solution and a glass vial inside it that holds a phenyl oxalate ester and a fluorescent dye. When the stick is bent, the glass vial breaks, allowing the two solutions to mix. The hydrogen peroxide reacts with the phenyl oxalate ester, producing energy that excites the dye molecules, which then release energy in the form of visible light. The color of the light depends on the type of dye used. #TikTokPartner #PrideTikTok