Other Things That Glow Under Black Light
- Petroleum jelly, such as Vaseline, glows a bright blue color under a fluorescent light.
- Uranium glass or vaseline glass.
- Rock salt.
- Fungus that causes Athlete’s Foot.
- Turmeric (a spice)
- Olive oil.
- Canola oil.
- Some postage stamps.
What will glow under a blacklight?
Well, petroleum jelly contains substances called phosphors. Phosphors absorb radiation from the black light and then emit the radiation absorbed as visible light. Tonic water is another household item that glows under UV-A rays of a blacklight. The fluorescent dyes in laundry detergent will also glow.
What can a UV light be used for?
The type of applications that use UV lamps include the curing or drying of materials such as inks and coatings; disinfection for viruses and bacteria; hygiene and infection control; fluorescent inspection; and tanning.
Does vaseline glow under black light?
Common materials that fluoresce under black light are:
White paper made after 1950 contains fluorescent chemicals while older paper does not. Petroleum jelly, such as Vaseline, which glows bright blue under a black light.
Does white glow under black light?
A phosphor is any substance that emits visible light in response to some sort of radiation. White T-shirts and socks normally glow under a black light because modern detergents contain phosphors that convert UV light into white light. This makes whites look “whiter than white” in normal sunlight.