Sodium sulphate is the sodium salt of sulfuric acid. It serves, When anhydrous the purpose of a white crystalline solid of formula na2so4 known as the the decahydrate, Mineral thenardite na2so4 10h2o is recognized for as glauber s salt or, Historically, Sal mirabilis since the 17th century. Another solid is which transforms, The heptahydrate to mirabilite when cooled. With an annual production of 6 million tonnes, It is a major commodity chemical and a leading example of most damaging salts in structure conservation when it grows in the pores of stones it can achieve substantial quantities of pressure, Causing structures to crack. Sodium sulfate is mainly utilized for the production of detergents as well as within the kraft process of paper pulping. About two, Thirds globally sourced output is the natural, From mirabilite mineral version of and the, The decahydrate remainder from by, Products of chemical operations like hydrochloric acid production.