Dry ice

Dry ice is the solid form of carbon dioxide (CO). It is extremely cold (78.5 C) and sublimates directly from solid to gas, leaving no liquid residue. When exposed to air, it produces a thick white fog due to moisture in the air condensing around the cold CO gas.

Dry ice is widely used for cooling and preservation, especially in food logistics, pharmaceuticals, and laboratory sample transport. It is also popular for fog and smoke effects in events and stage shows, and for industrial cleaning (dry ice blasting).

Key characteristics

• Color: White, solid

• Odor: Odorless

• Melting behavior: No melting, sublimates to gas

• Residue: None

• Nature: Non-flammable, non-toxic (hazardous in confined spaces)

Handling note: Dry ice must be handled with insulated gloves and stored in well-ventilated containers to prevent frostbite and CO buildup.

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