4 ways to make phosphorescent water

4 ways to make phosphorescent water
4 ways to make phosphorescent water

Phosphorescent water can add a mysterious and electric vibe to a dark room without the electrical cost associated with neon lights. With a few simple ingredients (you might even own some), it is possible to make phosphorescent water in a matter of minutes. Learn how to make these simple recipes to add a personal touch to your next Halloween party or dance party.


Method 1 of 4: Using tonic

Make Water Glow Step 1

Step 1. Pour tonic into a transparent container

Believe it or not, the very simple tonic glows when exposed to black light, it even glows a lot. To achieve this effect, start by pouring tonic into a transparent container. You can pour it on its own or dilute it in water. However, the more water you add, the less shiny it will be.

  • You will find tonic in most supermarkets for a few euros. Make sure to buy tonic, not sparkling water or sparkling water. It should be stated on the bottle contains quinine or something similar.
Make Water Glow Step 2

Step 2. Turn on a black light above the tonic

All you need to do to make the tonic glow is expose it to black light. Be sure to dim the room light before you start or it will be difficult to see the result.

You will find black lights in stores specializing in decorations or on the Internet. The price of a black light often depends on its size and strength, but a basic light can cost $ 20 or less

Make Water Glow Step 3

Step 3. You can drink the tonic, don't worry

Even though the tonic looks weird when you shine it with black light, that doesn't make it undrinkable, radioactive, or harmful to your health. However, tonic is often high in calories and sugar, so drink it in moderation.

Tonic glows this way because of a chemical it contains called white phosphorus. When the ultraviolet rays of black light hit phosphorus, they make it visible to the human eye and this is what makes it glow

Method 2 of 4: Using markers

Make Water Glow Step 4

Step 1. Buy some markers and test them to see if they shine

Not all markers glow when exposed to black light, so start by tracing a line on a sheet of paper to see if they glow or not.

  • You can use any color, but yellow is most likely to glow consistently in the dark.
  • Any brand of marker should work, but you can also experiment with other types of neon colored markers.
  • It is easier to tell if it is shining by being in a completely dark room, so that it is not bothered by other sources of light.
Make Water Glow Step 5

Step 2. Fill a transparent container with water

Tonic isn't the only substance that contains glowing phosphors, standard markers work in a similar way. As with the first method, start by filling an empty container such as a glass jar with water.

Be aware that this method will destroy your marker, you will not be able to use it once you are finished

Make Water Glow Step 6

Step 3. Remove the tube that contains the ink in the marker

If you simply put your marker in the container of water, the ink will not flow through the felt tip. That is why you need to extract all the ink that is in the marker. Here's how to do it.

  • Remove the cap from the marker.
  • Use a pair of pliers (or your fingers if you're not afraid of getting dirty) to pull the felt out of the tip of the marker.
  • Use the tweezers to remove the back of the marker.
  • Carefully remove the ink-filled tube, being careful not to spill any ink or get it on your clothes.
Make Water Glow Step 7

Step 4. Install the felt stick and ink in the jar

Put the felt tip pen, ink tube, and all the ink you took out of the marker into the jar of water. The ink should spread through the water and change its color. Cut or break the ink tube if necessary. Stir the water to dilute the ink evenly.

You can leave the ink tube and felt in the water when you are done stirring or you can take them out, it's up to you

Make Water Glow Step 8

Step 5. Shine a black light towards the water

As you did with the tonic, you will make the ink glow in the water by exposing it to black light in a dark room. You can also attach a lamp to the bottom of the container to get a colored lamp (however, you will no longer get the neon effect you would get with black light).

  • Unlike tonic, phosphorescent water obtained during this method should not not be consumed.

Method 3 of 4: Using fluorescent paint

Make Water Glow Step 9

Step 1. Find fluorescent paint at a fine arts store

The paint must be a tempera or water-based paint to be able to mix it in water. You could even buy glow-in-the-dark paint.

Like markers, you can use any color of paint, but generally lemon yellow or light green are more effective

Make Water Glow Step 10

Step 2. Pour the paint into a cup of water

To increase the shine that the water will produce, use as much paint as you want. You can put a few tbsp. to s. for just one cup of water.

Make Water Glow Step 11

Step 3. Mix the paint well

Use a wooden stick or similar utensil, not a kitchen spoon. Make sure the paint is completely dissolved in the water before continuing.

  • The paint will dissolve more quickly in warm or hot water.
  • If you let the water sit for a while, the paint will start to separate. Prepare this phosphorescent water for use immediately after stirring.
Make Water Glow Step 12

Step 4. Test the water

Turn off all the lights in the room and pass a black light over the water. Be careful when handling this type of phosphorescent water, since it contains paint it could stain fabrics.

  • You must not not drink this mixture.

Method 4 of 4: Using fluorescent sticks

Make Water Glow Step 13

Step 1. Fill a container with water and collect the necessary materials

For this method, you'll use water, fluorescent sticks, and various ingredients to make water that doesn't need black light to glow. As with other methods, first fill a transparent container, such as a bottle or jar, with water. You also need several other things before you start:

  • one or more fluorescent sticks
  • scissors
  • dishwashing liquid
  • hydrogen peroxide
  • gloves that are water resistant
Make Water Glow Step 14

Step 2. Break the fluorescent stick (s)

Take each fluorescent stick, find the compartments inside, and fold the stick until you feel it snap. The stick should glow right away, it will be easier to see if you turn off the lights. Repeat for each of the sticks. The more sticks you use, the brighter the water will be.

  • You will find fluorescent sticks in most stores specializing in party supplies or even in supermarkets (especially around Halloween). They are generally inexpensive.
  • Try to find the widest sticks possible to make your water shine to the fullest.
Make Water Glow Step 15

Step 3. Pour the fluorescent contents of the sticks into the water

Put on your gloves. Using scissors, carefully cut off the end of each stick and pour the liquid on it into the water. Mix the water and the fluorescent liquid.

Be careful, remember that each stick contains pieces of broken glass

Make Water Glow Step 16

Step 4. Add hydrogen peroxide and dish soap (optional)

The water should now be glowing, but you can improve it by adding a few more ingredients to it. Measure a few plugs of hydrogen peroxide and pour them into the mixture, then pour half a tsp. to c. ordinary washing-up liquid (eg Palmolive, Ajax, etc.).

The two chemicals that are in the stick are diphenyl oxalate (in the plastic tube) and hydrogen peroxide (in the glass tube), which is hydrogen peroxide. When you break the stick, the glass tube breaks and the two chemicals mix together, producing light. Adding a little more hydrogen peroxide is like adding a little more of the product that is in the glass tube, which makes the chemical reaction brighter. Dishwashing liquid contains chemicals that reduce the surface tension of the water, which allows diphenyl oxalate and hydrogen peroxide to mix better

Make Water Glow Step 17

Step 5. Shake and Watch

When you're done, close the container and shake it (or just stir the water) to make sure the ingredients are well combined. When complete, the water will glow with or without black light (but black light might bring out the shine of the solution better).

  • You must not not drink this mixture.


  • Fluorescent water is excellent for evening parties. Put fluorescent water in glass jars, vases, glasses or any other transparent container and arrange them all over your home, indoors or outdoors for the enjoyment of your guests.
  • You can also use fluorescent water in the bath. Prepare a bath by mixing in tonic or non-toxic fluorescent paint. Turn on the black light and turn off other bathroom lights to see your bath glow in the dark. It's great fun for the kids, however, if you use fluorescent paint, watch them to prevent them from drinking the bath water.
  • You could also have a glow-in-the-dark water balloon battle. Fill balloons with fluorescent water and attack! Try using the fluorescent stick method and run around your backyard at night with friends to spice up this traditional summer game. However, avoid getting fluorescent sticks in your eyes and mouth.
  • If you have snow in your yard, try preparing fluorescent water for painting the snow. Put the water in the refrigerator to prevent it from melting the snow and put it in bottles with nozzles. Go outside and pour the water over the snow to draw. It is also a great idea to spend an evening with your children.

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