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.
when salt is added to snow, it lowers the melting point of snow thus allowing it to melt at a lower temp. itself.
Salt has a certain type of chemical in it that makes the snow not hit the spots on the ground and everywhere else without sea salt will have ice.
melts the ice
Salt is thrown on snow becuase it is The most effective Element to melt snow/ice
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. For more info. search Google with your question and have a look through the websites on the subject.
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.
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. == ==
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.
melts the ice
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.
Salt water freezes at a lower temperature to regular water, so the salt helps to keep the ice from getting too cold, and turning the ice cream into just ice! it also helps stop the ice from sticking to the metal barrel.
Salt lowers the melting point of snow and ice.
Salt is thrown on snow becuase it is The most effective Element to melt snow/ice
The salt temporarily melts the snow, creating water. The water then refreezes, creating ice. Ice is much firmer, and faster than snow.
The 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.
Definitely heat, or salt
If you sprinkle a large amount of salt over snow/ice it will cause it to melt and keeps it from refreezing. If the snow is extremely thick you may have to lay down several layers of salt.
um lol food, snow, ice
The stuff you buy for that purpose is just plain, ordinary salt.