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            You Are Here :: Skip Navigation LinksHome >> About Salt >> Type Of Salt >> Edible >> Rock Salt
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Scientific name of rock salt is halite
Halite is the mineral form of sodium chloride, NaCl, commonly known as rock salt. Halite forms isometric crystals. The mineral is typically colorless to yellow, but may also be light blue, dark blue, and pink depending on the amount and type of impurities. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides and borates.
Halite is often used both residentially and municipally for managing ice. Because saline (a solution of water and salt) has a lower freezing point than ordinary water, putting salt on ice will cause it to melt. It is common for homeowners in cold climates to spread 'rock salt' on their walkways and sometimes driveways after a snow storm to melt the ice. It is not necessary to use so much salt that the ice is completely melted; rather, a small amount of salt will weaken the ice so that it can be easily removed with other means. Also, many cities will spread a mixture of sand and salt on roads during and after a snowstorm to improve traction.
Rock salt is also used to make ice cream. It is not actually used in the ice cream mixture; rather, it is used to melt the ice surrounding the can holding the ice cream, causing the ice to melt at a lower temperature, thus lowering the temperature of the ice bath and quickening the freezing process.
Rock salt is also occasionally used instead of a slug or shot in shotgun shells as a less-than-lethal option
 
 
 
 
 
 
 
 
 
 
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