[TimothyKiz (OP)]

hi Ive had a request for dry ice does anyone know if and where you can get it from?
Thanks.

[evan_au]

A number of years ago we needed dry ice (solid carbon dioxide) because we needed to run a test at lower temperatures than we could reach with our temperature-controlled chamber.
 
There was a liquid gas supply depot near our work, and they were happy to supply us with dry ice chips (for a price).
I've also seen it in the form of blocks, and these might last longer (smaller surface area for the mass).

Just be aware that:
- you need to purchase it just before you need it, as you can't store it in an ordinary freezer - it just evaporates ("sublimes": turns directly from solid to gas).
- You need to hold it with tongs, oven gloves or similar non-conductive materials, as it will burn your fingers (instant frostbite)
- You need to let the gas escape, so don't store it in an airtight container

[chiralSPO]

A number of years ago we needed dry ice (solid carbon dioxide) because we needed to run a test at lower temperatures than we could reach with our temperature-controlled chamber.
 
There was a liquid gas supply depot near our work, and they were happy to supply us with dry ice chips (for a price).
I've also seen it in the form of blocks, and these might last longer (smaller surface area for the mass).

Just be aware that:
- you need to purchase it just before you need it, as you can't store it in an ordinary freezer - it just evaporates ("sublimes": turns directly from solid to gas).
- You need to hold it with tongs, oven gloves or similar non-conductive materials, as it will burn your fingers (instant frostbite)
- You need to let the gas escape, so don't store it in an airtight container

I will add--don't be in small, poorly ventilated spaces with it for any substantial period of time (more than a few minutes). As it sublimes, the gaseous CO₂ will displace the air, and can cause suffocation.

This means, don't put it in your car and then drive home (keep it in the trunk unless you have a hatchback, in which case, get a friends to help you), and don't carry it on an elevator.