The country of Iraq covers the region known since ancient times as Mesopotamia, a Greek word meaning land between the rivers.. The fertile valley between the Tigris and Euphrates rivers supported some of the worldâs earliest civilizations.
In Saskatchewan there are two grades of sodium sulphate: the first is a salt cake grade, which is primarily used for wood digestion in the pulp and paper industry; the second is a detergent grade product that is used in detergents, glass, dyes, textiles, tanning, and in the chemical industry.
In Europe Romania, Bulgaria, Germany, Austria Bosnia and Poland all have large deposits and mine rock salt for use all across Europe. North America also has some of the largest rock salt mines, in places such as Ontario, Louisiana and Detroit. Many old salt mines, and some of the new functioning ones, are more than just mines though, and attract thousands of visitors each and every year.