Dry ice is the solid form of carbon dioxide (CO2). It's called "dry ice" because it does not melt like wet ice. Instead, dry ice converts into carbon dioxide gas. Because dry ice is extremely cold ( -109°F/-78.5°C), non-toxic, and completely dry, it is commonly used as an expendable refrigerant to ship frozen food or medical products or to cool materials during production. The other major use of dry ice is for dry ice blast cleaning, an effective and environmentally friendly way to clean industrial equipment.
When shipped in an insulated cooler, dry ice will continue to sublimate from a solid to a gas.
The quantity of dry ice needed depends on the size of your shipment and the length of time in transit.
Dry ice is extremely cold at -109º F (-79º C), which is 141º F below freezing. Make sure you wear gloves when handling dry ice.
Dry ice is pure, solid carbon dioxide (CO2). It's called dry ice because it changes from a solid to a gas and never melts into water.
Dry ice converts to carbon dioxide gas. If left in a confined space, the carbon dioxide gas will displace oxygen and present a suffocation hazard. If dry ice has been in a confined space (e.g. a closed car or room) for more than 10 minutes, open the doors and windows before entering or you could experience difficulty breathing. Leave the area immediately if you start to breathe quickly or have any difficulty breathing.
Do not store dry ice in a container that is completely airtight. When dry ice sublimates to carbon dioxide gas, the gas pressure greatly expands. This expansion will cause an airtight container to expand and possibly explode.