Dry ice?

Does anyone have any experience with this stuff?

We go to a Halloween/trick or treating party with multiple friends every year, and this year I've decided to make Witch's Brew to take. I know to use tongs, of course....Do you just drop the chunk of dry ice in the punch? Or break it up first? Will it all dissolve in a few hours? If not, how do you dispose of it? I have stainless steel sinks, would it harm that?

the bigger the chunk the longer the fog!

As dry ice is the solid state of Co2 I'm not sure if it can be used for cooling. I know if you drop it in water it doesn't cool the water but rather bubbles.

I did not know that. Should I get more than one chunk? How long does one last?

Oh gosh, I'm really nervous about this Brew, lol.

It will subliminate over a few hours, whatever you have leftover. Just don't put it in your freezer. It also doesn't seem to react well to being picked up with metal tongs(it squeals, LOL!) and I don't know what it would do to the sink. I would wrap it in a plastic bag just in case.

That stuff and liquid nitrogen are so fun to play with!

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Originally Posted by Freakie_frog

As dry ice is the solid state of Co2 I'm not sure if it can be used for cooling. I know if you drop it in water it doesn't cool the water but rather bubbles.

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Oh wow, I didn't know it doesn't cool. This stuff is so wierd. Thanks for that info, I'll make sure to chill the punch very well before the party.

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Originally Posted by SatanicIntention

It will subliminate over a few hours, whatever you have leftover. Just don't put it in your freezer. It also doesn't seem to react well to being picked up with metal tongs(it squeals, LOL!) and I don't know what it would do to the sink. I would wrap it in a plastic bag just in case.

That stuff and liquid nitrogen are so fun to play with!

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Haha, well I only have metal tongs, so this should be interesting. Thanks for the idea of the plastic bag, I'll do that!

Where do you get liquid nitrogen? lol

My mum of course ;) They have a huge tank at work for freezing things off of skin and whatnot.

You usually put it in a cup and when the doctors are done with it, they will throw it across the floor and the floor will smoke for awhile, haha. It's like dry ice, just liquid.

LOL
Well you'll have to tell her to show it to Marc one of these days, he would definitely get a kick out of that!

Well the Witch's Brew was a complete success!

http://sarah.digeratihost.com/images/hal07_6.jpg

Marc and my friend's twins

http://sarah.digeratihost.com/images/hal07_5.jpg

This is the yard of one of the houses we trick-or-treated...these people went ALL out!

http://sarah.digeratihost.com/images/hal07_3.jpg

http://sarah.digeratihost.com/images/hal07_4.jpg

A couple of guys we saw while out. When the guy riding the bike pedaled, the blade thingie went up and down, haha.

http://sarah.digeratihost.com/images/hal07_2.jpg

And our jack-o-lanterns...3 are from Homestarrunner.com, and one is Hatchetman.

http://sarah.digeratihost.com/images/hal07_1.jpg

Was a fun night!

in my lab we make ice cream with liquid nitrogen. just mix up all the ingredients (milk whipping cream, half n half, sugar, vanilla, salt, and some eggs) put it in some small cups and pour in the liquid nitrogen. it sublimates and freezes the ice cream, just have to keep stirring it. it's pretty sweet, and can make homemade ice cream in like 2 mins.

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Originally Posted by Kagez28

in my lab we make ice cream with liquid nitrogen. just mix up all the ingredients (milk whipping cream, half n half, sugar, vanilla, salt, and some eggs) put it in some small cups and pour in the liquid nitrogen. it sublimates and freezes the ice cream, just have to keep stirring it. it's pretty sweet, and can make homemade ice cream in like 2 mins.

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Hmm...that sounds scary!! Ah, remember the days of making ice cream, with the old hand-cranked ice cream freezer?? I thought we were doing good when we got an electric one!!!

Quote:

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Originally Posted by Kagez28

in my lab we make ice cream with liquid nitrogen. just mix up all the ingredients (milk whipping cream, half n half, sugar, vanilla, salt, and some eggs) put it in some small cups and pour in the liquid nitrogen. it sublimates and freezes the ice cream, just have to keep stirring it. it's pretty sweet, and can make homemade ice cream in like 2 mins.

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Hmmmm, never thought of that. This year on Halloween we flooded our entire floor that our lab is on with smog from dry ice. We got a bunch of strategically placed beakers with warm water and dry ice. It was a blast seeing everyone's reaction on the floor and as people were getting off the elevator.

That's a cool idea, Matthew! Maybe I'll try that with our foyer next year, would make a great effect.

The correct term to use is sublimes. Dry ice sublimes, not sublimates. And liquid nitrogen evaporates since it's going from liquid to gas phase. That stuff definitely is fun to play with though.