How to Make Fluorescent Dye

This guide will show you how to make fluorescent dye with just a highlighter.

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Fluorescent dye glows a bright neon yellow when exposed to a UV light source. This is ideal for dying T-Shirts and coloring paper.

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Open the highlighter.

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Squeeze the yellow stick.

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Bend it so all the liquid comes out.

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Now turn on the light and it should look like this.

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If it was done correctly it should glow like this.

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If you add laundry detergent it will change color.

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It works with big amounts too, just add a lot of water.

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If you get your hands like this don't worry it's non-toxic... for the most part. Just wash your hands.

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This can be frozen, and it won't lose it's glowing properties.

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Supplies

1 Highlighter
1 Cup
15 Milliliters Water
1 Scissors
1 Tweezers
1 Styrofoam Cup
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