I’d be rather careful about putting a large quantity of dry ice in a freezer, especially overnight.
Depending on how tight of a seal you have on your freezer compartment you might have the freezer door pop open.
As for handling dry ice:
Cyro gloves work well for long term handling (more than 15 min)
Short term handling ~2-10 seconds seconds or so CAN be done bare handed. I dig samples out of dry ice barehanded or with latex gloves all the time, but I briefly handle the dry ice and I always keep moving it around on my hands (don’t let dry ice come to rest on 1 part of your hands!!!)
Latex gloves ~10-20 seconds… the main difference is if the ice freezes to wet gloves you can remove the glove much easier…
DRY materials are important, water freezes very quickly with direct contact with dry ice. So wet hands = BAD thing.
CO2 exposure…
Vaporizing dry ice tends to go to the lowest gas imperiable surface… (the whole hot air rises thingie)
I wouldn’t breath the cool/cold cloud of vapor that forms when you dump it in water. Not only is it colder than ambient temperature it also have little O2 in it.
Adding dry ice to pool = cool effect for a dinner party
Dry Ice + pool + swimmer = BAD idea. Cold burns, a layer of CO2 rich air just above the water could cause all sorts of bad ideas.
Fun things to do:
95% ethanol (denatured rubbing alcohol works well for this) + dry ice = a freezing slurry that’s VERY cold (warmer than dry ice) and fluid. You can spread it on your skin (in very very small amounts… we’re talking like 300 uL volume here (a water drop is around 50-100uL) feels tingly, very cold and evaporates quickly while forming little bubbles of carbonation.
Vary the %age of ethanol for different freezing hardnesses. It’s kinda cool.
Richly dyed (I’m not sure if residental retail dyes would work, but reagent grade dyes work) fluids + dry ice CAN give you lightly tinted clouds.
Take a flat relatively smooth surface and vaporize a pellet of dry ice so that it’s smooth on one side. You can now make an ‘air car’. Or an object with a greatly reduced Coefficent of Friction as the dry ice (if its a small piece) will ride a cushion of vaporizing CO2.
Take a metal block with a hole in it (an aluminum heating core from a dry heat bath is ideal) drop a piece of dry ice into it and using a pen press the dry ice into the hole. The ice will vaporize the second it touches the metal (which is so much warmer and conducts temperature fairly well) building up pressurized CO2 under the dry ice… This should warm up the pressurized gas (if I remember my basic chemistry) causing the bottom of the piece of ice to vaporize even faster, the top part of the dry ice that you’re pushing into the hole will melt faster and you’ll have a VERY basic steam whistle.
If you have large chunks of dry ice… you can do some very interesting things… but these are reasonably more danagerous.
Take the dry ice and fully submerge it. Wait 5 min or so… what should happen is a shield of frozen water will surround MOST of the piece of dry ice. There will be holes in it for pressurized CO2 to escape. Now, manipulate the chunck underwater so one end is near the surface, take a pointy dohickey and poke a hole in the ice shield around the dry ice.
This will create a second hole for CO2 to escape, one that works with the water pressure for a more favorable pathway, so the other holes SHOULD close up.
Now you have a piece of dry ice, covered by a gas imperiable shield of regular ice with a hole at one end for gas to escape…
All you need to do is weigh it down and you’ve got a dry ice torpedo.
It’ll get easier to manipulate as the water the dry ice is in gets colder.
And even easier to manipulate 20-30% ethanol.