| Find Cheap Salt For snow When you add salt towater, you introduce dissolved foreign particles into the water. Thefreezing point of water becomes lower as more particles are added untilthe point where the salt stops dissolving. For a solution of table salt(sodium chloride, NaCl) in water, this temperature is -21°C (-6°F)under controlled lab conditions. In the real world, on a real sidewalk,sodium chloride can melt ice only down to about -9°C (15°F). |