Freezing Point of Alcohol

Freezing Temperature of Alcohol

Ethanol is ethyl alcohol, sometimes known as grain alcohol.
Ethanol is ethyl alcohol, sometimes known as grain alcohol. Ben Mills

The freezing point of alcohol depends on the type of alcohol and the atmospheric pressure. The freezing point of ethanol or ethyl alcohol (C2H6O) is around −114 °C; −173 °F; 159 K. The freezing point of methanol or methyl alcohol (CH3OH) is around −97.6 °C; −143.7 °F; 175.6 K. You'll find slightly different values for the freezing points depending on the source because the freezing point is affected by atmospheric pressure.

If there is any water in the alcohol, the freezing point will be much higher. Alcoholic beverages have a freezing point between the freezing point of water (0°C; 32°F) and that of pure ethanol (-114°C; -173°F). Most alcoholic beverages contain more water than alcohol, so some will freeze in a home freezer (e.g., beer and wine). High proof alcohol (containing more alcohol) will not freeze in a home freezer (e.g., vodka, Everclear).

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Helmenstine, Anne Marie, Ph.D. "Freezing Point of Alcohol." ThoughtCo, Mar. 2, 2017, thoughtco.com/freezing-temperature-of-alcohol-606833. Helmenstine, Anne Marie, Ph.D. (2017, March 2). Freezing Point of Alcohol. Retrieved from https://www.thoughtco.com/freezing-temperature-of-alcohol-606833 Helmenstine, Anne Marie, Ph.D. "Freezing Point of Alcohol." ThoughtCo. https://www.thoughtco.com/freezing-temperature-of-alcohol-606833 (accessed November 19, 2017).