1/8" Blasting Pellets or 1/4" Rice
1/2", 5/8" or 3/4" Pellets
Various sizes of slabs and blocks
Standard 10"x10"x12" blocks
Dry Ice is frozen carbon dioxide, a normal part of our earth's atmosphere. It is the gas
that we exhale during breathing and the gas that plants use in photosynthesis. It is also
the same gas commonly added to water to make soda water. Dry Ice is particularly useful
for freezing, and keeping things frozen because of its very cold temperature: -109.3°F or
-78.5°C. Dry Ice is widely used because it is simple to freeze and easy to handle using
insulated gloves. Dry Ice changes directly from a solid to a gas -sublimation- in normal
atmospheric conditions without going through a wet liquid stage. Therefore it gets the
name "dry ice."
As a general rule, Dry Ice will sublimate at a rate of five to ten pounds every 24 hours
in a typical ice chest. This sublimation continues from the time of purchase, therefore,
pick up Dry Ice as close to the time needed as possible. Bring an ice chest or some other
insulated container to hold the Dry Ice and slow the sublimation rate. Dry Ice sublimates
faster than regular ice melts but will extend the life of regular ice.
It is best not to store Dry Ice in your freezer because your freezer's thermostat will
shut off the freezer due to the extreme cold of the Dry Ice! Of course if the freezer is
broken, Dry Ice will save all your frozen goods.
Commercial shippers of perishables often use dry ice even for non frozen goods. Dry ice
gives more than twice the cooling energy per pound of weight and three times the cooling
energy per volume than regular water ice (H2O). It is often mixed with regular ice to save
shipping weight and extend the cooling energy of water ice. Sometimes dry ice is made on
the spot from liquid CO2. The resulting dry ice snow is packed in the top of a shipping
container offering extended cooling without electrical refrigeration equipment and connections.