Introduction: Vinegar + Baking Soda Grenade
Hi, this is my first instructable, but hopefully a reasonable one. In this guide I will show you how to make a Grenade out of vinegar, baking soda, some foil, a steel nut, some tape, and finally a pair of film canisters.
Part of the criteria for my project was that my 'Grenade' had to be transportable, rather than the more traditional rockets which started the reaction by being inverted. I wanted mine to be able to be inverted, and even lightly shaken (not too hard though).
It is important to note that the person weilding a chainsaw-bayonet in my profile picture is not me!
Step 1: Step One - Acquiring the Materials
For this instructable you will need the following items:
Some vinegar (enough to half fill 1 canister, but more if you intend to repeat)
Some baking Soda, ie bicarbonate of soda (again, enough to half fill 1 canister)
Some ordinary kitchen aluminium foil - about 2 square inches per grenade
Some tape - you will need something strong enough to make a decent seal, I used something resembling insulation tape from my dad's workshop
Something heavy and uneven - I used a steel nut
A pair of standard film canisters - I got mine from a photography centre down the road
Step 2: Step 2 - Building the Grenade
Take the two canisters and make sure they are reasonably clean, especially the outside near the lid. Fill one to about halfway with vinegar, and drop the nut in. Take the other, and fill about a quarter of it with the baking soda.
Step 3: Step 3 - Creating the 'cap'
Now place the foil over the canister containing the baking soda, and trim so there is about a 1/4 of an inch all around the rim. Fold this edge over the rim of the canister.
Step 4: Step 4 - Sealing the Two Halves
Now, holding the foil on with your fingers, invert the baking soda capsule, and place it perfectly over the one containing vinegar. Once you are happy that they are lined up nicely, place the insulation tape (about enough to go around one and a quarter times) around the two halves. I find that you need to stretch the tape as you lay it on the canisters, but just make sure that it looks nice and smooth, not crinkled. This is the most crucial stage, as if you do not properly seal your canisters, you will not end up with a grenade, but a disappointing hissing sound.
Step 5: Using the Grenade
Finally you are ready to use your new grenade. Go somewhere that you will not upset your neighbours (like, for instance their front lawn. At 3 o'clock in the morning.) Then shake your grenade so that the seal is completely broken, not just ruptured. Then, once your are sure the reaction has started, throw it - quickly. I have had a few of these explode in my hand, and, contrary to popular belief, it isn't a pleasant experience. If you have built it correctly, the two halves should fly apart with a satisfying bang, rather scarily for someone nearby.
I hope that you have enjoyed making, and using, your grenade, and that you will make many more in the future.
<(-.-)> Cheezy Monkey
Please note: The video taken by my camera is not of a very good quality, and it does explode with a large bang.