The Use of Phosphorous in Light Bulbs

Phosphorous is sometimes used in the coating of fluorescent lights.
••• fluorescent lamp image by Valentin Mosichev from Fotolia.com

Phosphorus, from the Greek meaning "light-bringer," is an element commonly used in light bulbs. However, it should not be confused with "phosphors," which is instead any substance that exhibits luminescence. Phosphorus, though, is a phosphor and does exhibit this luminescence.

Fluorescent Light

Sometimes, the phosphor coating on the inside of fluorescent lights includes phosphorus in the metallic salt lining the inside of the light bulb. These coatings produce light by having particles of radiation hit the coating from the inside of the tube, causing them to fluoresce.

LED Technology

Blue phosphorus is the most commonly used type of light-emitting diode (LED). To produce white light (as an alternative to fluorescent light), blue phosphorus LEDs are used with energized yellow phosphorus.

Danger

There is a lot of speculation that phosphorus is dangerous because it can cause adverse reactions such as kidney damage and osteoporosis if encountered too often. The phosphorus commonly used in these materials either reacts with oxygen quickly or is otherwise rendered inert, making them effectively harmless to humans.

Related Articles

Uses of Alkaline Earth Metals
What Is Red Phosphorus?
What Is the Gas Used in Neon Signs that Produces a...
Important Uses of Sphalerite
What Light Bulbs Do Not Emit UV Radiation?
How Does a High Pressure Sodium Ballast Work?
What is Ethanolic Potassium Hydroxide?
How to Make a Potato Lamp
What Makes Clear Glass Glow Yellow Under a Black Light?
What Elements Glow in the Dark?
What Are the Colors of Neon?
LED Vs. CF Light Bulbs
How to Find Out If an Element Is an Ion
How to Test an Infrared LED
Physical Characteristics of Aluminum Oxide
Why is Quinine Fluorescent?
How to Use a 12-Volt LED on a 24 Volt
Hazards of Copper Sulfate