At What Temperature Will Salt Not Melt Ice. Click to see full answer. But as the temperature drops salts effectiveness slows to the point that when you get down near 10 degrees F and below salt is barely working.
Salt prevents the water molecules from solidifying into ice crystals at 32 F instead staying slushy at that temperature before eventually freezing around 15 F. But if the temperature is higher than the freezing point the salt will surely make the melting. The higher the concentration of dissolved salt the.
Julie Pollock CC BY-ND.
All ice melts come with their own advantages and disadvantages. The ice changes to state and becomes liquid water at this point and the temperature does not change until all of it has melted. And at 1 0 F 1 pound of salt will only melt about 4 pounds of ice. What temperature does rock salt not work.