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Dry ice - description

Dry ice is CO2 in the solid phase. Unlike common and easily accessible ice made of water, it has two unique properties:

a) dry ice temperature: -78.5 °C

b) sublimation under atmospheric pressure

Follow this LINK to watch an interesting film demonstrating CO2 phase transitions.

Sublimation is the process of transition from the solid phase directly into the gas phase, without the intermediary liquid phase. Under standard conditions, dry ice exhibits this feature and mostly that is why it has so many applications – refrigeration, transport, laboratories, dry ice blasting process, industrial metal shrinking as well as...  photography, advertising, cinematographic special effects, and drinks sold at pubs. You can learn more about it in the “Application” section.

Dry ice is a completely natural, odourless, bacteriostatic, and inflammable product. The dry ice production process boils down to sudden pressure reduction in a chamber filled with liquid CO2. This results in very quick cooling down and “freezing”, namely transition into the solid phase. Thus created “snow” is pressed and takes specific shapes: it can be pellets, namely rollers of various diameters, or blocks of any sizes.

Our standard production comprises pellets with a diameter of 3 mm – other shapes can be delivered upon clients’ individual requests.

When you use dry ice, you should be aware of several basic issues: gaseous CO2 is approx. 1.5 heavier than air, so sublimated dry ice starts to slowly drop down forcing the air out – this means that in closed rooms you need an air conditioning system with the air outlet located near the floor. You should also remember that it is extremely cold (approx. -78.5°C !!!), so there is a risk of getting frostbites on your skin when you touch it directly. Also, check the temperature resistance of other materials that dry ice may come in contact with. You can learn more about handling dry ice in the “Safety” section.