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Does Salt Freeze?

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Katie answered
Yes. The salt you put on your french fries is frozen.
A substance "freezes" or becomes a solid when it reaches a certain temperature. This specific temperature gives the substance enough heat energy or causes the substance to lose so much of its heat energy that it changes its state of matter.

water freezes when it reaches a temperature at or below 0° Celsius or 32° Fahrenheit.
Water is H2O or Dihydrogen Monoxide. The frozen solid form of H2O is ice and the melted liquid form of H2O is water.

Salt, which is composed mostly of Sodium, freezes at or below 207.9 ° Fahrenheit  or 97.72° Celsius.
So when the temperature of Sodium is 207.9° F or less, it is in the solid form and you would put it on your french fries.

The boiling point of Sodium is 883°C   or  1621° F.

melting and freezing points are almost always the same.
The melting point is the temperature at which the solid substance changes its state from solid to liquid.
The freezing point is the temperature at which the liquid substance changes its state from liquid to solid.

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This is a very thought-provoking question.

Most people think of seeing water being frozen (ice) or melted (water) or even boiled (steam) as no big deal because people drink liquid water (with frozen ice cube  in it) all the time.

But Sodium freezes/melts at such a high temperature that no one can get close enough to see it happening or see the resulting liquid salt, so it seems mysterious, rare, and odd.

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