Why is salt used to melt ice?

  1. LensMan999 profile image52
    LensMan999posted 4 years ago

    Why is salt used to melt ice?

    Salt is usually sprinkled over snow covered roads during winter. But how does it work?

    https://usercontent1.hubstatic.com/8117844_f260.jpg

  2. CHRIS57 profile image61
    CHRIS57posted 4 years ago

    Salt and water mix is what is called an eutectic system.
    http://en.wikipedia.org/wiki/Eutectic_system
    In this type of mixture both ingredients have higher melting temperatures than respective individual components. To make it simple: Apparently the crystal  structure that characterizes eutectic components is destabilzed by the addition/mixture of a second component, thus lowering the melting point. And the melting point is when crystal structure is dissolved.

  3. sriramapriya profile image64
    sriramapriyaposted 4 years ago

    Salt melts ice essentially because adding salt lowers the freezing point of the water.

 
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