That’s cool--------Bioluminescence and Chemiluminescence

Key words Chemiluminescence

Bioluminescence

Antioxidant

ChemiluminescenceIt is the emission of energy with limited

emission of luminescence, as the result of a chemical reaction.

The ingredient of Chemiluminescence is always Luminol .

Luminol (3-Aminophthalhydrazide) is a useful chemical reagent that exhibits chemiluminescence, with a striking blue glow, when mixed with an appropriate oxidizing agent. .It is a white to slightly yellow crystalline solid that is soluble in most polar organic solvents, but insoluble in water. But It is bad for human bodies, especially for eyes and skin. Because it can emit light when it is oxidized, It can be used in criminal investigation to detect blood.

light stick: it uses chemiluminescent

reactions and works without an external

energy source.

The principle how light sticks work:

CPPO+H2O2——2C6H5OH+2CO2

In this process,a intermedium will

appear that has high energy and it will

pass the energy to dye. Then excited

electronic state becomes unstable so that

it will release light.

Bioluminescence means that organisms or its extractive can emit light, such as firefly(a flying insect with a tail that shines in the dark).

AntioxidantAntioxidant: A kind of substance that reacts

so readily with oxygen, such as VITAMIN C or E. Antioxidant can prevent human body from the harmful effect of oxygen and even the senium. We can often get Antioxidant from green tea, apple and broccoli.

Makes cut fruit turn brown—

The color is due to brown pigments that are

formed by the oxidation of colorless compounds

normally present in the cell of the fruit. Oxygen

in the air is oxidizing agent that reacts with the

colorless compounds to produce the brown

pigments. The oxygen is reduced when it accepts

electrons from the pigments, so the pigments

function as reducing agents. This combination of

oxidation and reduction goes hand in hand in a

redox reaction because another must gain

electrons that are lost by one element.

Questionswhat kinds of vitamin are considered as

antioxidantas VITAMIN C or Ewrite structural formula for resultants of

reaction inside light sticks.

What is the ingredient of ChemiluminescenceLuminol

Thank you!