Melting Ability vs. Temperature

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Temp.
(*F)

1 LB.
of Salt Melts

30

46 lbs. of ice

25

14 1/2 lbs. of ice

20

8 1/2 lbs. of ice

15

6.1/2 lbs. of ice

10

5 lbs. of ice

5

4. lbs. of ice

0

3 1/2 lbs. of ice

-6

3 lbs. of ice



You can see how quickly salt's effectiveness drops as the temperature does. This is why Calcium and Magnesium are being used in many blended de icers.
There is a MAJOR drop in effectiveness from 30 to 25 degrees. The largest drop on this chart, about 32 pounds less ice!!!
Now do you see just how much temperature affects melting properties of salt?


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