It is unusual (called "dry ice") because it does not form liquid at atmospheric pressure, but directly changes from solid to gas. It is the only substance that most people see that can act so quickly. When the air is very dry, water will sublimate, and it often does, which explains why snow will not melt at temperatures below 0 degrees Celsius (32 degrees Fahrenheit). Sublimation of dry ice (solid carbon dioxide) requires heating.
Although it gets heat from the environment (dry ice sublimes at minus 78 degrees Celsius = minus 1 10 degrees Fahrenheit), the process is very slow. However, the much warmer skin surface accelerates this process, but at the cost of the rapid drop of skin temperature to the freezing point of water, which may kill skin cells. The longer you hold dry ice, the greater the exposed surface area (by making more skin cling to the ice), so your skin is more likely to "burn".
Of course, you must be careful when using it. So a famous Russian wants to celebrate her birthday with her friends and husband in the indoor swimming pool.
Then, his friend poured 25 kilograms of dry ice into the swimming pool to create a smoke effect. What about the ending? Several people died there with the celebrity's husband.
When she and her friends poured 25 kilograms of dry ice into the small swimming pool, the chaos began. Their initial goal was to cool off after steaming the sauna. In addition, dry ice is poured into it, and the smoke produced creates a unique visual effect.
According to Katrina's story, several people jumped into the swimming pool immediately after adding dry ice, including Caitlin's husband.
A fatal decision was made in a poorly ventilated room, which finally made them unconscious because of carbon dioxide gas poisoning. Three people lost their lives, including Catherine's husband.
Her husband died in the hospital, and two others died on the spot. Not only that, but four people were poisoned by burns.
The function of dry ice is to make the indoor carbon dioxide content too high and dangerous, so people inhale dry ice to congest and prevent oxygen from reaching important organs of the body.
In fact, dry ice is often used as a food cooler, the term is refrigerator, or for long-distance transportation. The fog produced by sublimation of dry ice directly changes from solid to gas, and it is often used for fogging or fogging when shooting, which is not dangerous.
But in rare cases, dry ice is also dangerous.
This happens when dry ice is sublimated in a large amount in a room without proper ventilation, because it will lead to the release of a large amount of carbon dioxide gas to replace the oxygen we need.
If inhaled, it will lead to dangerous consequences such as poisoning, headache and even death.