Which is colder dry ice or regular ice with salt?

Answer 1

Dry ice vapor is carbon dioxide. The only argument that might be made is that the vapor, which is very cold, is more dense because of its lower temperature than "regular" or room temperature carbon dioxide.

Carbon dioxide is a colorless and odorless gas, by the way. What you actually see when dry ice, the solid form of carbon dioxide changes state from a solid to a gas (which is called sublimation) is water vapor in the air condensing into tiny droplets because of the intense cold near the dry ice.

Answer 2

Dry ice is colder than regular ice with salt. Dry ice is carbon dioxide in solid form and has a temperature of -109.3°F (-78.5°C), while regular ice with salt typically has a temperature around 5°F (-15°C).

Answer 3

liquid nitrogen is colder

dry ice has no set temperature in solid phase but its sublimation temperature is around -80 degree Celcius. Liquid nitrogen while in liquid phase has to be at least -210 degree Celcius. Liquid nitrogen can snap freeze anything while it takes dry ice a few minutes.

Credential: I'm a scientist working with both these reagents on a regular basis in a research lab.

Answer 4

Dry ice is solid, gaseous is a gas. Dry ice sublimes directly from a solid state to carbon dioxide gas when it is allowed to warm.

Answer 5

Dry ice is typically colder than regular ice. Of course, regular ice submerged in liquid nitrogen would become colder than typical dry ice.

Answer 6

Dry Ice is composed of Carbon dioxide only.

Answer 7

Yes, when you freeze CO2 you get dry ice. It's called dry ice because on heating the dry ice it sublimes directly to the gaseous state without passing through the liquid phase.

Answer 8

Dry ice is colder

Answer 9

dry ice

Answer 10

Dry Ice