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Fluorescent Liquids
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== Why This Works == ''Fluorescence'' is when something can absorb high energy light, and then releases lower energy light. Black lights give out violet light, which has a lot of energy to it. Fluorescent materials, such as these liquids, can absorb the violet light, which gives them a lot of energy. The extra energy they give out as light, but the light they give out will have less energy, and will be closer to red on the color scale. The term fluorescence comes from the element Fluorine, which glows brightly under a black light. Fluorescence is quite common, and it is useful in many research fields. Some animals and plants can glow under black light, and this is called ''Biofluorescence''. Geologists can identify some rocks and minerals based on what color they glow under a black light. Fluorescence has a lot of practical applications as well. Fluorescent lights use fluorescence with the elements or chemicals inside of them to create light. Most white products, such as plastics, paper and clothing, will glow because of white fluorescing agents that are added to them. Almost all safety clothing can fluoresce as well, so it is easier to spot when light shines on it. {| class="wikitable" style="color:black; background-color:#ddd; text-align: left; margin-left: auto; float:right" |+Vials |'''Color''' || '''Chemical/Compound''' |- |Red || Rhodamine B |- |Orange || Rhodamine 6G |- |Green || Fluorescein |- |Blue || Quinine Sulfate |- |Indigo || Primuline |} {| class="wikitable" style="color:black; background-color:#ddd; text-align: left; margin-right: auto" |+Bottles |'''Color''' || '''Chemical/Compound''' || '''Additional Info''' |- | Red || Resazurin (Redox Indicator) || Higher concentrations will give dark red and purple fluorescence. |- | Pink || Toilet Bowl Cleaner || This bowl cleaner glows because it uses Phosphoric Acid. |- | Yellow || Fluorescein || Higher concentrations will give green fluorescence. |- | Green || Vegetable Oil || Vegetable oil fluoresces partly due to extra chlorophyll in it. |- | Teal || Honey (in Water) || Honey only weakly fluoresces, which is why beehives don't glow. |- | Blue || Laundry Soap || Laundry soap has fluorescent compounds added to help clothing look brighter. |- | Light Blue || Tonic Water || Tonic Water glows because of the Quinine Sulfate added to it. |- | Indigo/Violet || Salt Water (Concentrated) || Salt only weakly fluoresces, which is why the ocean doesn't glow. |}
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