What is dry ice? How is it prepared?

Asked by Solar | 4th Jan, 2018, 10:23: PM

Expert Answer:

The carbon dioxide gas is pressurized and cooled to form liquid CO2.
Then liquid carbon dioxide is injected into either a block press or pelletizer.
These machines have chambers in which, once released to atmospheric pressure,
the liquid carbon dioxide converts to dry ice snow and carbon dioxide gas.

Answered by Ramandeep | 5th Jan, 2018, 09:35: AM