The luminous material of the light stick

The fluorescent stick is fitted with a glass tube in a collapsible plastic tube. During the breaking process, the liquid A in the glass tube flows out and is rapidly mixed with the liquid B in the plastic tube to undergo a chemical reaction in which the energy released in the chemical reaction is passed to the fluorescent pigment molecule and the fluorescent pigment releases energy in the form of visible light (From the high energy state back to a more stable low energy state), so that chemical energy can be converted to light energy.

Liquid A is a solution of different fluorescent pigments and bisoxalic acid diester (CPPO) in solvent. Liquid B is a solution of hydrogen peroxide dissolved in solvent. The main solvent is ester compound. Chemical Reaction Equation:

CPPO + H2O2--2C6H5OH + 2CO2

Hydrogen peroxide oxidizes phenyl oxalate to two molecules of phenol, producing a high-energy intermediate in the process that transfers energy to the dye and electronically excited dyes. Let go back to the stable ground state. This light is produced by the chemical reaction, known as the chemical light that is cold light.