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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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โˆ™ 2014-01-08 18:40:55
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Q: At what temperature does salt become ineffective in melting snow and ice?
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Related questions

Why does salt become ineffective at melting snow at certain temperatures?

Rock salt or regular sodium chloride loses its effectiveness for melting ice at about 5 degrees below zero F. This occurs because the freezing is more rapid than the melting ability. It is still melting but it cannot keep up with refreezing.


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It depends on which salt you are talking about. Table salt has a melting/freezing temperature of 801oC, for example.


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