Dry ice is solidified CO2, its melting point is -78.5 ℃, and the surrounding temperature will be reduced to about 20 ℃ when it is volatilized. Therefore, it is easy to sublimate in daily storage, which causes dry ice to become smaller and cause losses. Therefore, a special dry ice storage box must be used for dry ice storage and transportation, which can effectively reduce the loss caused by the volatilization of dry ice.
What should be noticed when transporting with dry ice?
- If possible, it is recommended to store dry ice in an environment below -80 ° C and to store it with other items as little as possible. When using closed items such as dry ice storage boxes, leave a gap in the storage box. This is because dry ice is extremely volatile. If it is a closed environment, a large amount of CO2 generated by volatilization will be accumulated in the closed environment, which will cause the internal air pressure to rise continuously and there is a danger of explosion.
- To store dry ice, use a special storage box. A good storage box can reduce dry ice loss to 6 ‰. If there is no special box, you can also use ordinary foam boxes to store dry ice. If not necessary, try not to cut a whole piece of dry ice into small pieces or granules. This is because the dry ice cut into smaller pieces will sublimate more easily than a whole piece of dry ice.
- Dry ice evaporates quickly, mostly due to high temperatures. Therefore, you cannot place dry ice in a place with high temperature, and try to keep dry ice products in a cool and ventilated environment. This is both safe and allows the dry ice to remain refrigerated for longer and not easily melt away.
- Usually, when we transport seafood, we need to put dry ice around the seafood so that the seafood stays fresh for a long time. When choosing dry ice, it is best to use block-shaped dry ice cubes. The dry ice cubes will keep the seafood longer cooling effect during transportation.