What is Dry Ice?

Dry ice is the solid form of carbon dioxide (CO₂), which gets its name because it doesn't melt into a liquid but instead turns directly into a gas when heated, a process called sublimation. It is extremely cold, approximately -78.5 °C (-109.3 °F), and is used for temporary refrigeration, to keep food and other items frozen, and for creating fog effects, but it must be handled carefully to prevent cryogenic burns and to ensure proper ventilation.