When it comes to ice, you might always think that it has to be very cold. So how can it cause burns? In reality, under high-pressure conditions, water can freeze at temperatures as high as 76 degrees Celsius, meaning if you touch it, you will get burned immediately.
British scientists were the first to create high-temperature ice by compressing water in a thick steel device. When the pressure reached 20,600 atmospheres, the water froze at temperatures above 75 degrees Celsius, which can indeed cause burns. Scientists refer to this type of hot ice as “fifth ice.” Generally, the higher the pressure, the hotter the ice becomes.
Interestingly, hot ice is denser than regular ice, and even denser than liquid water. The density of ice at 76 degrees Celsius is 1.05. Therefore, when placed in water, it will sink rather than float like regular ice.
