Dry ice is solid carbon dioxide (CO2). It is made by compressing and cooling gaseous CO2. Expansion converts the liquid into the snow form of the solid state. The snow is then compressed by a hydraulic press into dry ice blocks, slices or pellets.
Application and use
storage and transportation of frozen or chilled foods
storage and transportation of medical, pharmaceutical, research and other temperature-sensitive materials
process coolant in food, chemicals, research and pharmaceutical industries