Dry Ice is made of Liquefied oxygen.
Dry ice is made by liquefying carbon dioxide and injecting it into a holding tank, where it's frozen at a temperature of -109° F and compressed into solid ice.
Depending on whether it's created in a pelletizer or a block press, dry ice can then be made into pellets or large blocks.
Dry ice is the solid form of carbon dioxide.
It is commonly used as it does not have a liquid state and sublimates directly from the solid state to the gas state.
It is used primarily as a cooling agent, but is also used in fog machines at theaters for dramatic effects.
Dry ice can be a very serious hazard in a small space that isn't well-ventilated.
As dry ice melts, it turns into carbon dioxide gas. In a small space, this gas can build up.
If enough carbon dioxide gas is present, a person can become unconscious, and in some cases, die.
Dry ice can be used to flash-freeze food or laboratory biological samples, carbonate beverages, make ice cream, solidify oil spills and stop ice sculptures and ice walls from melting.
Dry ice should never be placed into the mouth or swallowed.
So as a rule dry ice should never be added to drinks to avoid any such risk.
Do not touch dry ice with your skin! Use tongs, insulated (thick) gloves or an oven mitt.
Since the temperature of dry ice is so cold, it can cause severe frostbite.
If you suspect you have frostbite seek medical help immediately.
Dry ice lasts approximately 18-24 hours in a regular sized styrofoam cooler with 1-2 dry ice blocks.
Dry ice can last up to 3 or 4 days in a larger cooler and when more blocks of dry ice are used in conjunction with each other.
It generally takes 24 hours for five to 10 pounds of dry ice to sublimate.
The dry ice can freeze tissue in your mouth, esophagus, and stomach.
However, the most significant risk is from the sublimation of dry ice into gaseous carbon dioxide.
The extreme build-up of pressure could rupture your stomach, causing permanent injury or possibly death.
Foremost, regular ice and dry ice differ in the way they are made, or in their overall structure.
This means that regular ice is made by freezing water at freezing point temperatures.
Dry ice, on the contrary, is made by the compression of CO2 (carbon dioxide gas) using very high pressures.