[EMS Discuss] nitrous oxide

Ben Hallert ben at hallert.net
Thu Feb 13 13:25:23 PST 2014

Give 'em a call?

Checking craigslist, I see some promising results for 'oxygen tank'
including a $60 medical tank and a $35 aircraft O2 tank.  I believe a tank
must have a valid test-stamp on it (they're periodically re-certified as
being able to hold a certain load) so be careful not to save a couple bucks
up front at the risk of needing to buy a spendy certification later before
the nitrous people will fill it.

You might also ask them if a CO2 tank for paintball would be acceptable;
Amazon has 20oz tanks for $20 and up.  A legit nitrous tank will have a
siphon tube so that it will vent liquid instead of gas, not sure how that
applies in this specific use.

- Ben

On Thu, Feb 13, 2014 at 1:18 PM, Rick Osgood <rick at richardosgood.com> wrote:

> That should work for getting the n2o.  I just need a tank to store it in.
>  I checked Autozone's website and they sell 10lb and 15lb "tank kits" but
> they are like $500!  That's ridiculous.  I don't need anything specialized,
> just a tank that these guys can fill.  I'm curious why those kids are so
> expensive.  Maybe they are special light weight tanks or something.
> On Thu, Feb 13, 2014 at 12:27 PM, Bob Miller <kbob at jogger-egg.com> wrote:
>> Garage 808 has nitrous filling.
>> http://garage808.com/?page_id=270
>> Sent from my phone.  No type good.
>> On Feb 13, 2014 11:35 AM, "Benjamin Hallert" <ben at vipmail.com> wrote:
>>>  This sounds like a cool project. If you have a bottle, you might be
>>> able to check with industrial welding supply to see if they would fill it.
>>> If you are up for experimenting with very small quantities, cooking supply
>>> stores often have nitrous oxide in little cartridges that look like CO2
>>> cartridges for BB guns.
>>> A couple of years ago, I spent a week or so drawing and dreaming about
>>> building a rubber fueled, nitrous oxide oxidized hybrid rockets to mount to
>>> the trailer hitch on my car. It wouldn't produce very much thrust and the
>>> size I envisioned, but I would technically have a rocket car for a little...
>>> - Ben
>>> On Thu, Feb 13, 2014 at 11:30 AM, Rick Osgood <rick at richardosgood.com>wrote:
>>>> I've been thinking of trying to build a hybrid rocket for a while now.
>>>>  I want to use nitrous oxide as my oxidizer but I don't have much
>>>> experience buying or using industrial gasses.  Does anyone know a place in
>>>> town I would likely be able to purchase a small canister of the stuff?  I
>>>> imagine it might be difficult because of it's potential negative uses.  I'm
>>>> hoping someone here might have some experience with this.
>>>> Thanks,
>>>> Rick
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