How to Demonstrate Reaction Rate and Surface Area

by kentchemistry.com

8.4K1012

Intro: How to Demonstrate Reaction Rate and Surface Area

AKA Dragons Breath -Lycopodium powder explodes into flames when it is exposed to fire in dust form. The increased surface area increases the reaction rate and you get a 6 foot long flame.

11 Comments

didgitalpunk 13 years ago

yea you can anything dry with fine powder will ignite that includes: chocolate powder corn starch flour ...

Amasarac 14 years ago

Ethylene-vinyl acetate works well for flamethrowers

tictaclad 14 years ago

1 corn starch works best...2 man up and put it in your mouth

Bitty 16 years ago

Again, how is this an instructable? At the very least, show people step by step on how you put together the rig to blow the powder through the flame.

technodude92 16 years ago

Bitty, videos and slideshows are not meant to be Instructables. Rather they are meant to be a place where you can document a build/something you did without full explanations and details. Don't believe me? check out [https://www.instructables.com/id/The-InstructableSlideshowVideo-Tabs..../ this instructable]. The rig is very simple, a tube with some lycopodium powder in it aimed at a flame.

gamer 16 years ago

this isnt really a flame thrower

oakironworker 16 years ago

If you have allergies this stuff can put you down. Used this in a chem lab and within two hours was drooling out every facial orifice except my ears. I like your other demos. Will be using a few in class

GorillazMiko 16 years ago

That was insane! Awesome job. Can you show how to do it, I would want to try.

Kiteman 16 years ago

Hey, this is what I described in the comments of your lycopodium-bomb video!