By Maddie Etman, Danielle Isom, Bella Fischer

What is Chromatography?

Chromatography is a method used by scientist for separating organic and inorganic compounds. By analyzing these compounds scientist can figure out what makes up that compound. Chromatography is a great physical method for observing mixtures and solvents.

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.

Special Effect

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 The main colors it was originally made from come out from the color.

Chemistry Connection

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.

Safety Precautions

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.