Vacuum salt

Vacuum salt is rock salt that has been refined. It pumps into clean water in the large salt deposits and dissolves the salt to a salt solution. This brine is purified from contaminants with special chemicals and then you let the water boil away, either under pressure or under vacuum (negative pressure). It should then be a salt that is> 99.9% pure sodium chloride. With the help of boiling can also be used to control the size of salt grains, so as to obtain rough-grained or fine-grained salt, depending on what you want it to. One way used to break the rock salt is by drilling. The product you get then is just the vacuum salt. The remedy is to drill down into the salt layer in the rock and blow down water. The salt dissolves in water and taking up the solution through a tube. When we in Sweden talking about vacuum salt, we mean mostly rock salt, which is broken in this way. Since the vacuum salt is so pure, it is very useful. That is why it is this salt that is used in healthcare to drop and more. It has also to food, chemical industry, softening, farming, fishing industry and much, much more.