The temperature of dry ice itself is very low. When put into water or air, it will quickly absorb heat and sublimate, and will condense the water vapor in the nearby air into countless small water droplets. This is white fog. It looks like smoke. This is the same as the "white fog" of popsicles in summer. It's all water droplets, not other gaseous substances.

Dry ice is solid carbon dioxide, which condenses into colorless liquid at room temperature and pressure of 6079.8 kPa. If the temperature continues to decrease and the low pressure increases, the liquid will quickly evaporate and condense into pieces of compacted ice-like solid matter, which is dry ice.

When dry ice is heated and turned into gas, it condenses the water vapor in the nearby air into countless small water droplets, which is white fog. If you pour hot water on dry ice, these white fogs will appear thicker, just like a fairyland.

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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.