Dry ice is a fascinating substance. It is extremely cold and creates a thick, smoky fog when exposed to air. But what exactly is it chemically?
Chemical Formula: CO₂ (Solid Carbon Dioxide).
Sublimation: Turns directly from Solid to Gas (skips liquid phase).
Temperature: -78.5 °C.
Main Use: Deep freezing without leaving a wet mess.
The chemical formula of Dry Ice is CO₂. Dry ice is simply solid Carbon Dioxide.
Regular ice (frozen water, H₂O) melts into liquid water when heated. However, solid carbon dioxide (CO₂) does not melt into a liquid under normal atmospheric pressure. When heated, it turns directly from a solid into a gas. This process is called Sublimation. Because it never goes through a 'wet' liquid phase, it is called 'dry' ice.
The chemical formula for dry ice is CO2, as it is just solid carbon dioxide.
It is called dry ice because it does not melt into a liquid at room temperature. It sublimates, turning directly from a solid into a gas, so it never gets 'wet'.
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