I'm trying to find out how salt melts ice. I know it has a lower melting point. So does that mean when you mix it with the the ice, because of its lower melting point, it melts the water? Please include any links, if you find some good ones.
2007-02-07 11:45:38 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
http://chemistry.about.com/cs/howthingswork/a/aa120703a.htm
2007-02-07 11:54:21 · answer #1 · answered by BlueRaven 2 · 0⤊ 0⤋
My favorite ice melt salt is Calcium chloride, CaCl2. When this salt dissolves in water, or ice, it is very exothermic. This release of heat causes the ice to melt quickly. There is also the secondary effect that the salt water mixture has a lower freezing point than pure water. Put both of these factors together and you have a great ice melter.
2007-02-07 11:50:28 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋
Water mixed with salt freezes at a much lower temperature, so adding salt to ice at a given temperature makes it unable to remain frozen (unless it is really really cold).
2007-02-07 11:49:29 · answer #3 · answered by Random Precision 4 · 0⤊ 0⤋
saltwater has a HIGHER melting temperature because the salt molecules get inbetween the water molecules and make it harder for them to align as they freeze, so it has to be colder for it for freeze, and its easyer for it to melt.
2007-02-07 11:48:55 · answer #4 · answered by Molly <3 CCL 2 · 0⤊ 0⤋