The salt will cause the snow and ice to melt, which it does whenever I sprinkle salt on to my front path during winter, here, in the UK.
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melts the ice
Salt is thrown on snow becuase it is The most effective Element to melt snow/ice
It is smarter to put down salt before the snow comes. Once the snow has begun, it may be harder to melt any ice that has begun to form.
Rock salt or regular sodium chloride loses its effectiveness for melting ice at about 5 degrees below zero F. This occurs because the freezing is more rapid than the melting ability. It is still melting but it cannot keep up with refreezing.
I'm not the expert on this as I live down South. But salt does nothing to snow or ice. It is only after the snow or ice melts and becomes water THEN the salt lowers the freezing point of the water(now a solution) so that it will not re-freeze. Salt could provide some traction when sprinkled on the ice just as sand would. It depends what kind of salt you are using. Ordinary Sodium Chloride sprinkled on ice will first steal energy when it dissolves, thus cooling the ice and increasing friction. Remember that ice isn't slippery at all, it is the water film on it that lubricates it. After it is dissolved however, it is true that it lowers the freezing point. I believe the most common salt for salting roads is Calcium Chloride, and this behaves a little differently. I'm no expert on this salt, but I do drive on salted roads, and it seems to get right down to business and melt the ice. Perhaps it gives off heat when it dissolves. But when salting roads it is never wise to salt snow. It is very important to clear as much of the snow as possible, because salted snow becomes a slush that is extremely slippery. == ==
You can eat table salt or use rock salt on roads to melt snow and ice in the winter.
melts the ice
It is because when you put in table salt, actually any salt, the ice absorbs the salt's energy and that is what make the ice colder than it was.
Melting of ice with salt is example of physical change as there is no chemical reaction involved .
Salt does not alter the temperature of the snow, but gets into the structure of the ice crystals, causing the water (ice remember is frozen water and snow is ice) to have a lower freezing point and so, it is used to melt ice and snow in the winter months.
Table Salt.
table salt is regular salt.
Table salt and rock salt are sodium chloride - NaCl.
Yes, the salt on popcorn is common table salt, which can be used to melt ice.
No. I would think the purpose of the rock salt it to keep you from slipping on the snow and ice when you step out on your porch.
Most people prefer rock salt to melt ice (sidewalks, driveways, etc) over table salt because it does not cake on the surface like table salt. As for effectiveness, they all combat ice the same. All edible salts are kosher unless something is added to them to render the salt non-kosher such as flavourings. There is no specific type of salt that is "kosher salt".
Salt lowers the melting point of snow and ice.