When handling dry ice, it is essential to understand the physical properties of the material to ensure that transportation and storage is safe and efficient. Dry ice, which consists of frozen carbon dioxide (CO2), sublimates directly into gaseous CO2 at room temperature. This process can create hazardous conditions if there is insufficient ventilation, as dangerous concentrations of CO2 can quickly build up in enclosed spaces. Therefore, several safety precautions must be observed when transporting dry ice.
As dry ice sublimates when heated, i.e. changes from a solid to a gaseous state, adequate ventilation during transportation is crucial. It is important to avoid airtight containers. The reason for this is the fact that the pressure inside such a container can increase rapidly, which can lead to a dangerous condition. To minimize the risk of pressure build-up, special dry ice containers should be used. These are usually made of polystyrene or special plastic materials, which not only provide good insulation, but also enable the necessary pressure reduction by the sublimated CO2.
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The choice of means of transportation is also very important. Vehicles whose cargo area is separated from the driver’s cab or special insulated vehicles designed for the transportation of goods requiring refrigeration are best suited. Such vehicles not only help to keep the dry ice cold, but also prevent the concentration of CO2 in the driver’s cab.
If you regularly need large quantities of dry ice, we recommend our WL Antarctica S.
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