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Dry Ice - Overview
What is Dry Ice?
Dry ice is solid carbon dioxide, CO2. It is made by compressing and cooling gaseous carbon dioxide (CO2) until it liquefies. 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.
Features
- Appears as a translucent white solid
- Changes from a solid to a gas (sublimation) at normal temperatures without going through a wet liquid state
- Having a product temperature of -78ºC dry ice is a good source of extreme cold
- Dry ice appears as a translucent white solid which at normal temperatures sublimes from the solid state directly into a gas without passing through a liquid phase
- Non flammable, asphyxiant
- Colourless gas with a slightly pungent odour which is only detectable at high concentrations
Products
Dry ice is available in BLOCKS, SLICES, 9mm PELLETS and 3mm DRICE as shown in the table below:
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Blocks
approx dimensions: 250mm x 210mm x 125mm
weight: 10kg per block
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Slices
approx dimensions: 210mm
x 125mm x 25mm
weight: 1kg per slice
supplied in 10 x 1kg slices
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Pellets
approx diameter: 9mm
supplied in bags of 10kg
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Drice
approx diameter: 3mm
supplied in 105kg or 210kg quantities
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Applications
There is a wide variety of applications that can be used for dry ice. These include:
- Storage and transportation of frozen and chilled foods
- Storage and transportation of medical, pharmaceutical, research and other temperature sensitive materials
- Process coolant in food, chemicals, research and pharmaceutical industries
- Freeze-branding
- Fabrication shrink fitting Industrial cleaning by dry ice blasting (See
 Dry Ice Blast Cleaning (460 KB) for more information)
- Special effects and fog making machines
- Cold grinding of food and plastics
- De-flashing of rubber products
- Pipe Freezing
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