Chemically-activated Light Sticks

Chemically-activated Light Sticks

Chemically-activated light sticks, also known as glow sticks, are self-contained, portable, and non-incendiary sources of light that are activated by a chemical reaction. They consist of a plastic tube containing two separate compartments, one filled with a hydrogen peroxide solution and the other with a phenyl oxalate ester and a fluorescent dye. When the tube is bent and the inner glass vial is broken, the two chemicals mix and undergo a chemical reaction that produces light. The fluorescent dye absorbs the energy released by the reaction and emits it as visible light, creating the characteristic glow. Chemically-activated light sticks are widely used in a variety of applications, including military operations, emergency response, outdoor recreation, and entertainment. They are particularly useful in situations where traditional sources of light are not available or practical, such as during power outages or in underwater environments. They are also popular among children and party-goers for their colorful and mesmerizing glow. Although chemically-activated light sticks are generally considered safe, they do contain chemicals that can be harmful if ingested or come into contact with the skin or eyes. The hydrogen peroxide solution can cause skin irritation and burns, while the phenyl oxalate ester can cause eye and respiratory irritation. As such, it is important to handle light sticks with care and dispose of them properly.

portable, non-incendiary, chemical reaction, fluorescent dye, emergency response

— Joseph Nelson

CITATION : "Joseph Nelson. 'Chemically-activated Light Sticks.' Design+Encyclopedia. https://design-encyclopedia.com/?E=265544 (Accessed on July 17, 2025)"