Carbon dioxide gas that has been cooled to below -78.5ºC and converted to a solid.
It is called dry ice because of its similar appearance and low temperature. However, unlike ice, which melts to give the liquid water, dry ice does not melt but goes directly from a solid to a gas. This process is called sublimation and produces 845 volumes of gas for each volume of solid.
Properties: | Boiling point | -78.5°C |
Density | 1564kg/m3 | |
Relative density | 1.56 (Water = 1) | |
Ratio to volume of gas | 1 : 845 (At room temperature) |
Carbon dioxide gas that has been cooled to below -78.5ºC and converted to a solid.
It is called dry ice because of its similar appearance and low temperature. However, unlike ice, which melts to give the liquid water, dry ice does not melt but goes directly from a solid to a gas. This process is called sublimation and produces 845 volumes of gas for each volume of solid.
Properties: | Boiling point | -78.5°C |
Density | 1564kg/m3 | |
Relative density | 1.56 (Water = 1) | |
Ratio to volume of gas | 1 : 845 (At room temperature) |
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