Question

What is dry ice?

Answer 1

Dry Ice

• Dry ice is simply carbon dioxide that has been cooled and condensed.
• When it reaches ambient temperature and pressure, it bypasses the melting process and expands directly into carbon dioxide gas.
• Dry ice is made by compressing and cooling gaseous ${\mathrm{CO}}_2$ under high pressure, resulting in liquid ${\mathrm{CO}}_2$.
• Dry ice is frequently used as a substitute for refrigeration for groceries and medical supplies due to its exceptionally low temperature of$-78°\mathrm{C}$.

Uses of Dry Ice

• Dry ice is used to keep the sensitive asphalt at the proper temperature during transportation from the manufacturing factory to the job site.
• During breakdowns, use dry ice to keep the contents of the refrigerator cool.
• Dry ice is the most efficient and cost-effective way of keeping perishables cooled or frozen.