Question

Write the chemical name for dry ice. Justify its name and how it is stored.

Answer 1

Part 1: Chemical name of dry ice

• A chemical name is a systematic name given for a chemical compound.
• The worldwide using chemical names are created and developed by IUPAC (Internation Union for Pure and Applied Chemistry).
• The chemical name of dry ice is the solid form of carbon dioxide $\left({\mathrm{CO}}_2\right(\mathrm{s}\left)\right)$.

Part 2: Dry ice - name justification

• The name dry ice is given because it resembles ice and it sublimes directly from the solid to the gaseous phase as a visible fog when exposed to air.
• Due to sublimation, it always remains dry because it does not change its state to liquid.

Part 3: Storage of dry ice

• The dry ice should be stored in an insulated container under high pressure.
• The container should be thick, to prevent the sublimation of dry ice.
• The dry ice should be stored in ventilated rooms otherwise, the expansion of ${\mathrm{CO}}_2\left(\mathrm{s}\right)$ will cause an explosion.
• The dry ice should not be stored in a refrigerator-freezer, because the extreme cold temperature will cause the thermostat to turn off the freezer.