Does salt melt ice faster?

Answer

Adding salt to ice does make the ice melt much faster. The formation of ice occurs when the temperature of water reaches 0 degrees Celsius.

The reason salt causes ice to melt is that a water solution, and the dissolved salt has a lower freezing point than a pure substance like plain water.

The addition of salt to ice dissolves the film of liquid water on the surface of the ice. This lowers the film’s freezing point below the ice’s temperature. The salty water solution begins to melt the ice and then creates more liquid water.

However, using salt to de-ice a sidewalk when the temperature is below 0 degrees Fahrenheit or -17.77 degrees Celsius does not melt the ice.

Q&A Related to "Does salt melt ice faster?"
rock salt melts ice faster because every winter my mom puts rock salt on ice and it melts within 2 seconds so i think rock salt melts the fastest.
http://wiki.answers.com/Q/Which_salt_melts_ice_fas...
1. Take a bucket and put some salt in it. Pour water in the bucket and mix to make a solution. The activity of the brine depends upon the concentration of the solution, i.e. the amount
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Salt will melt ice faster than sugar. Although adding sugar to water may also
http://www.chacha.com/question/what-melts-ice-fast...
Salt works like antifreeze-it lowers the melting point of water.
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