By Maddie Etman, Danielle Isom, Bella Fischer
How it Works
In all chromatography there is a mobile phase and stationary phase. The stationary phase doesn't move while the mobile phase does move. The mobile phase moves through the stationary phase picking up the compounds to be tested. As the mobile phase continues to travel through the stationary phase it takes the compounds with it.
When you put the coffee filter in the rubbing alcohol the single color separates. The main colors it was originally made from come out from the color.
The rubbing alcohol creates a reaction to the color. When the rubbing alcohol and coffee filter touch, it causes the color to separate into its original colors. For example, purple would turn into blue and red, and black would go into every color.
If you have any cuts on your hands wear gloves to protect them. Tie your hair back because it could get it your way of your project and go into the alcohol. Lastly, wear goggles. You have to be careful that you don't get the rubbing alcohol in your eyes or they will burn.