How to Make Dry Ice - With a Fire Extinguisher!

Here's how to make dry-ice at home, or wherever you feel like it! All you need is a pillow case, and a CO2 fire extinguisher.

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WARNING:

Dry Ice is extremely cold! (-78C/-109F) and can cause instant frost-bite to exposed skin. This project should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in serious injury. Use of this video content is at your own risk.

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It cost just under $30 to refill the tank to get about 2 lbs of dry-ice. Contrasting that with the cost of dry-ice at the local grocery store ($1.00/lb) doesn't make financial sense, but this method is much more fun!

If pressurized liquid CO2 is quickly depressurized, the CO2 expands to a gas, and cools its surroundings. This is called adiabatic cooling. Because the CO2 sublimates directly into a gas, it's very clean and doesn't leave behind any residue.

Some fire extinguishers utilize CO2 as the medium for suppressing fires. These types are mainly found in restaurant kitchens, mechanical rooms, and in areas that hold sensitive equipment like computers.

CO2 fire extinguishers are usually charged with food grade CO2 and are referred to in terms of pounds. For example, a 5lb CO2 extinguisher is charged with a 5 lb weight of liquid CO2.

CO2 fire extinguishers are marked with stickers, or holes punched in the servicing labels. They also have unusually large discharge horns, and no pressure gauges.
#tkor #thekingofrandom

[TheKingofRandom]

I'll show you in the follow up video. I just filmed it today and the kids loved the ice-cream cones. Thanks for asking!

[TheKingofRandom]

You guys are awesome :D Thanks for the smile

[TheKingofRandom]

Awesome! I'm glad you liked it, and wishing you lots of fun with your experiments!

[TheKingofRandom]

Great idea there Mongrel! I've wondered about that as well .. and of course it will have to be tried! I have some ideas already :D

[TheKingofRandom]

The concern is actually frost-bite. If you move the ice quickly enough it won't hurt, however if it sits in one spot for for more than a moment, you will feel the sting of the cold

[RimstarOrg]

Grant, you're right, it does say dry-chemical on it, but if there was any tag on it at one time, it's long gone. The gauge pressure is still in the green though.

[TheKingofRandom]

Haha thanks. No formalities necessary my friend!

[TheKingofRandom]

I don't have experience with CO2 for welding, but I imagine it will work! It may not be food grade, but that's probably ok for most purposes. If you try it, let me know how it works. :D

[TheKingofRandom]

Yeah, that could have been bad. Cool story, thanks for sharing!

[dhruvpatel]

Anyone watching after the death

R.I.P

[smo]

getting dry ice is easier than getting a fire enstinguer

[TheKingofRandom]

You know what I'm talking about ;D

[uberx]

Yeah but now where do i get a fire extinguisher man do i have to steal one from my school?

[TheKingofRandom]

Close. He was an extreme outdoor enthusiast and I think some of his passion was genetic :)

[chefkendranguyen]

I simply love this channel, I always learn something new.

[faithvillejess]

wait they let u have that thing...FOR
lucky

[TheKingofRandom]

Yes it will melt quickly. It will even melt in the freezer. Best way to store it would probably be in something like a thermos.

[JRWILDY]

Dry ice isn't available in the UK so this video is very helpful. Thanks for posting.😊

[rubengeneroso]

It's 2023 but this feels like this is posted 2 days ago

[speedytang]

I have a midterm tomorrow but I addicted to the soothing melodious sounds of your voice. :3