Science
Chemistry
Snow and Ice

At what temperature does salt become ineffective in melting snow and ice?

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2014-01-08 18:40:55

The minimum practical application range for salt is a pavement

temperature of 15-20 degrees F and above. While salt will melt snow

and ice down to a pavement temperature of -6 degrees F, it can melt

over five times as much ice at 30 degrees F as at 20 degrees F.

Thus the effectiveness of salt is sensitive to small differences in

pavement temperature.


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