How much does a 45% solution of de-icing fluid lower freezing point of water?

It lowers the freezing point by 30 °C

Explanation:

In the picture attached, the curve freezing point vs de-icing fluid concentration is shown. We can see that a 45% solution of de-icing fluid makes the freezing point of water -30 °C, that is, 30 °C below the pure water freezing point.

5.6⋅10−^19  j

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