Dry ice, the solid form of carbon dioxide, does not actually “burn” in the traditional sense of combustion involving rapid oxidation and the release of heat and light. The sensation of a burn arises from its extremely low temperature, approximately -78.5 degrees Celsius (-109.3 degrees Fahrenheit). Direct contact with skin causes rapid freezing of cells, resulting in frostbite, which is commonly perceived as a burn.
This characteristic makes dry ice useful in a variety of applications. It serves as an effective refrigerant, preserving perishable items without leaving a liquid residue as it sublimatestransitions directly from solid to gas. Historically, it has been crucial for shipping temperature-sensitive materials such as food and pharmaceuticals. Its ability to create a dense, cold fog also makes it popular in theatrical productions and special effects.