How to store dry ice and precautions for dry ice storage

日期: 2022-01-06

How to store dry ice:


1. Dry ice must be stored in a special freezer, so that dry ice can be stored for 5-10 days. After the storage period, the dry ice begins to form ice clusters or even gasify, and the use effect will be significantly reduced. After each use, be sure to remove the remaining dry ice from the machine and put it in the freezer. Do not store dry ice in well-sealed, small containers. Dry ice is extremely volatile and produces a gas 1000 times larger than the solid area, which creates a huge pressure on the sealed container.


2. Another common method is to store in a dry thermos bottle. There is a vacuum layer between the inner wall of the thermos bottle and the outer wall for heat insulation, and the gas generated by the volatilization of dry ice can be released from the gap between the cork and the bottle wall. , reducing the internal pressure. But scientific experiments have shown that using this method can only save one day and one night.


3. To store dry ice, you need to use a special storage box, but there is still loss. A good storage box can reduce the loss to 6‰. But the price is expensive. General families do not have special boxes, and ordinary foam boxes can be used for storage.


 


Precautions:


1. Do not store dry ice in the refrigerator or freezer exposed. Because if the dry ice is placed directly in the refrigerator or cold storage without packaging, the temperature regulator of the refrigerator or cold storage will mistakenly think that the temperature is too low and be turned off, which will damage the life of the refrigerator. Although dry ice will definitely keep the refrigerator or cold storage at a good low temperature in the event of a power outage, too much carbon dioxide gas can cause the refrigerator to explode.


2. After each use, be sure to take out the remaining dry ice from the machine and put it into the freezer. After the storage period, the dry ice begins to form ice clusters or even gasify, and the use effect will be significantly reduced. Due to sublimation, dry ice will be consumed within 24 hours, and the loss caused by these sublimation is also everywhere. Therefore, it is best to purchase dry ice before it is used, and try to shorten the time interval between purchasing dry ice and actually using it. .


3. Do not store dry ice in containers with good airtightness and small volume. Dry ice is easily sublimated to produce a gas 1000 times larger than the solid area, which creates huge pressure on the sealed container.


4. When handling dry ice, remember to keep the location of the user ventilated. The user must not place the dry ice in a closed room, car, cabin, etc. at the same time, because the sublimated carbon dioxide will replace oxygen and may cause shortness of breath or even suffocation. .


5. The temperature of dry ice is extremely low, please do not put it in your mouth to prevent frostbite.


6. When handling dry ice, be sure to use thick cotton gloves, clips and other coverings (plastic gloves have no barrier effect).


7. Dry ice cannot be mixed with liquid.


Dry ice must be stored and used correctly to prevent unnecessary injuries caused by wrong dry ice operation.


 


 


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Xiamen Hefengli Dry Ice Decontamination Equipment Co., Ltd., referred to as Hefengli Dry Ice, was established in 1999. It is a professional enterprise dedicated to the application of dry ice in China. It has formed a complete industrial chain of R&D, manufacturing, sales and after-sales. The company's brand is HORECO2, and Hefengli has a doctoral-level R&D team. Its main products include Dry ice granulator & block making machine, Dry ice cleaning machine, dry ice automatic production line, dry ice intelligent cleaning, supply of dry ice of various specifications, dry ice Cleaning service and leasing, Dry ice insulation box, dry ice equipment accessories and related intelligent products; 18 dry ice manufacturing factories have been deployed to provide a complete dry ice distribution service network and provide customers with a cost-effective experience.

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ADD:No. 18 Xinling Road, Houxi Industrial Park, Jimei District, Xiamen, China