Jump to content


Photo

Looking For Mixtures That Create Gas

to make an air chamber filler.

10 replies to this topic

#1 Zyzybalooba

Zyzybalooba

    Member

  • Members
  • 42 posts

Posted 25 August 2004 - 05:39 PM

I have to do a science project for a science class. For the project, a friend and I decided to try and make a way I can pressurize a chamber using mixtures that create gas using household items. If I can actually do it, I am going to try and make a gun based of of using these mixtures. To test it, I am going to use 1' PVC and a ball valve used as a way to seal the it off and also a firing valve.

And suggestions on mixtures? We already have baking soda and vinegar, Alka Seltzer, and club soda.
  • 0

#2 xedice

xedice

    Member

  • Members
  • 306 posts

Posted 25 August 2004 - 06:07 PM

What was that one explosive gas mixture? I think it was lye, vineagar, aluminum foil, or maybe water instead of vineagar. Look that up before you try it though, I've heard it was pretty potent. My friends used to make water bottle bombs out of it.
  • 0
Shmokin' weed, Shmokin' wizz
Doin' coke, drinkin' beers, Drinkin' beers beers beers
Rollin' fatties, Smokin' blunts
Who smokes the blunts? We smoke the blunts
-Jay

#3 TheHaze

TheHaze

    Member

  • Members
  • 192 posts

Posted 25 August 2004 - 07:33 PM

drano and aluminim foil, but it's not my fault when you kill yourself...
  • 0
When you die, if you get a choice between going to regular heaven or pie heaven, choose pie heaven. It might be a trick, but if it's not, mmmmmmm, boy

#4 INsecurity

INsecurity

    Member

  • Members
  • 29 posts

Posted 09 September 2004 - 07:18 PM

Ive got a few I will post the pros and cons aswell.

Baking Soda and Vinegar
Pros - Fast reaction, Easy to get and cheap, Not toxic, Only creates carbon dioxide.
Cons - Might not make enough pressure to fire off a dart quick and created alot of mess.


Cobalt-Chloride and Water in Aluminum foil.
Pros - Very fast reaction, Can create high pressures.
Cons - Created heat of up to 90+ so yuo will need a metal tank to use it in, Not very cheap around $60 US for 500g, Toxic as far as i know


Hydrochloric Acid and Magnesium.
Pros, Fast reaction, creates hydrogen gas which can then be used for combustion.
Cons, Uses Acid so you need a rubber lined tank, creates Hydrogen which is explosive.

Dry Ice and Water
Pros, easy to get your hands on.
Cons, creates heaps of pressure so you will need a pressure relase valve, very cold so you will need to use metal or something becasue pvc is too brittle.

Thats all I can think of right now. Dont get yourself blown up.
and if you do I didnt tell you how to make whatever you did

--EDIT--
Make sure you talk to your science teacher about these mixtures first, Im not a science teacher just a pyro mainiac. I dont know the full effects of these mixtures.

Edited by INsecurity, 09 September 2004 - 07:35 PM.

  • 0

#5 nerfspecialforces

nerfspecialforces

    Member

  • Members
  • 443 posts
  • Location:Southern CA

Posted 09 September 2004 - 10:59 PM

I'll put in that the dry ice thing is way illegal :o

Edited by nerfspecialforces, 10 September 2004 - 05:22 PM.

  • 0
QUOTE(Arcanis @ Apr 8 2005, 05:02 PM)
When I insert a dick, nothing happens.


Call me NSF
N erf
S pecial
F orces

#6 okto

okto

    Member

  • Members
  • 590 posts
  • Location:tulsa OK/fort worth TX

Posted 10 September 2004 - 02:27 PM

carbonic acid and water - think soda
ammonia and bleach - chlorine gas, EXTREMELY dangerous

electrolysis of water gives you H and O gases, if you want a non-chemically induced rxn option.


NSF, what the hell did you say? dry ice is not illegal...

Edited by okto, 10 September 2004 - 02:28 PM.

  • 0

#7 nerfspecialforces

nerfspecialforces

    Member

  • Members
  • 443 posts
  • Location:Southern CA

Posted 10 September 2004 - 05:23 PM

Yeah, putting dry ice in a sealed container is illegal.
  • 0
QUOTE(Arcanis @ Apr 8 2005, 05:02 PM)
When I insert a dick, nothing happens.


Call me NSF
N erf
S pecial
F orces

#8 Murdock

Murdock

    Member

  • Members
  • 33 posts

Posted 10 September 2004 - 09:27 PM

Well, it would always be fun to have a dart fired at you only to discover your skin melting off due to the back end of it being covered in hydrochorlic acid or something.
  • 0

#9 Ice Nine

Ice Nine

    Prince Dangus

  • Administrators
  • 1,460 posts
  • Location:West LA
  • State:California
  • Country:United States

Posted 10 September 2004 - 10:11 PM

Done, done, and doner.

I worked on that a while ago. Never got around to building the final design, though.
  • 0

Unholy Three: DUPLUM SCRTA, DUPLUM PROBLEMA (2009)

But Zeke guns tend to be like proofs by contradiction

Theoretically solid but actually non-constructive

Rnbw Cln


#10 Zyzybalooba

Zyzybalooba

    Member

  • Members
  • 42 posts

Posted 11 September 2004 - 03:02 PM

I am just doing it with acids and baking soda. I won't use anything stronger than Hydrochloric acid. Even then, weak HCl would melt the dart.
  • 0

#11 macman

macman

    Member

  • Members
  • 62 posts
  • Location:NY

Posted 11 September 2004 - 04:25 PM

If you end up using something with a powerful, fast reaction, make sure you include an overpressure valve. Also, try to use something that doesn't foam.... damn, now i have to go look at my chemistry notes from last year....
  • 0
\m/-.-\m/


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users