# General Questions on "Elephant Toothpaste"

## Equations:

1)$\ce{~2H2O2(aq)->2H2O(l) + O2(g)}$

## Context:

I have a few questions on the reaction commonly referred to as "Elephant Toothpaste". You see, I am doing a basic demonstration of chemistry to little kids. I certainly don't think I am qualified to perform this, (Well, I can, but I want to know the details behind this, which is why I am asking for help.) but I have no choice. So Here we go!

## Procedure:

1. Pour ~$\pu{50 mL}$ of hydrogen peroxide1 into graduated cylinder.
2. A "Squirt" (Not my wording) of Dish Soap into the graduated cylinder.
3. ~$\pu{10 mL}$ of potassium iodide ($\ce{KI}$) Solution into Graduated Cylinder.

The result is...Foam, and lots of it.
130% concentration

## So, here is my question:

• What happens to the potassium iodide?
• @Riggycat: What is the concentration of potassium iodide in your experiment? Apr 20 '17 at 23:37
• en.m.wikipedia.org/wiki/Elephant%27s_toothpaste. Potassium iodide just act as catalyst. Apr 21 '17 at 4:24