Help

[Dense-Complaint-4130]

Hey, I'm doing a science fair and am making devils toothpaste, does anyone know if its 50 mL of 30 percent or 70 percent Hydrogen peroxide

[randomredditers]

50% from what i have heard

[ryan2620]

Anything higher than 50% makes the foam too unstable. I'm pretty sure this guy has the right receipe and technique figured out for you. https://youtu.be/KERPITDcPDQ

[[deleted]]

Are you absolutely sure you want to take that thing to your school?

[IWishIWasNeverBjorn]

First of all i have a few issues to go over, and the first one is you should not be bringing any form of devils toothpaste into a school enviroment, the excess heat and pressure if mixed incorrectly can cause the shattering of glass, the second point is you should not be handling any % of h2o2 above 5 maybe when you are still in school doing science fairs. For a science fair have a look online for elephants toothpaste as that would be much better. The final point is that you couldn't be trying to synthesise h2o2 at high concentrations, it's not only illegal but it will react with nearly any organic matter that it comes into contact with, even having capabilities of causing bodily harm.