Salt

Salt, also known as table salt or rock salt, is a crystalline mineral that is composed primarily of sodium chloride. Salting is an important method of food preservation. It is also used to season foods.

According to an alchemical work dating back to the 1550s, salt is used in making the perfect medicine, along with vinegar, urine, sal ammoniac, and a particular sulphur vive. Salt has more medicinal applications: the treatment of scale rot includes rubbing the affected area with a solution of salt water and other ingredients.