Dry ice is solid carbon dioxide, which is condensed into colorless liquid under the pressure of 6250.5498 kPa, and then rapidly solidified under low pressure.

Carbon dioxide is invisible. It's not smoke, it's fog. When carbon dioxide changes from solid to gas, it absorbs a lot of heat, which makes the temperature of the surrounding air drop rapidly, and the air temperature drops accordingly. Its solubility in water vapor becomes smaller, and the water vapor liquefies and releases heat, turning into small water droplets, which is fog.

This is the same as the "white fog" of popsicles in summer. It's all water droplets, not other gaseous substances. That is, we see white fog instead of white smoke.

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Application scope of dry ice

1, dry ice cleaning does not need to cool down and dismantle the mold, which avoids the corrosion and damage of the mold by chemical cleaning method, the mechanical damage and scratch of the mold by mechanical cleaning method, and the decline of mold accuracy caused by repeated loading and unloading.

2. Add dry ice when making ice cream, and the ice cream will not melt easily. Dry ice is especially suitable for cold storage and transportation of takeaway ice cream.

3. Adding dry ice to seafood dishes in star-rated hotels and restaurants can create a white smoke landscape and improve the level of banquets, such as making lobster sashimi.

4. Low-temperature transportation of special drugs such as plasma and vaccines for medical use.

5, widely used in the stage, theater, film and television, weddings, celebrations, parties and other production of sea of clouds effect, the country and even the world using dry ice to produce special effects of countless classic repertoire.

6. Fresh-keeping transportation of high-grade foods such as high-grade beef and mutton.

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