Why does pure ice melt slower in salt water than fresh water?

Subject: Why does pure ice melt slower in salt water than fresh water?

Date: Wed Jul 21 08:35:54 1999
Posted by M Fletcher
Grade level: 7-9 School: Parkside Middle School
City: Cullingworth State/Province: Yorkshire Country: England
Area of science: Chemistry
ID: 932564154.Ch

Message:


I know that putting salt on ice speeds up the melting rate BUT when I placed 
one ice cube in salt water and one ice cube in tap water, the ice cube in salt 
water took longer to melt despite the water temperature in both beakers being 
the same.  I was expecting the ice cube in salt water to melt more quickly.

Thank you for considering my question.

Martin.

Re: Why does pure ice melt slower in salt water than fresh water?

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