Naturally occurring sodium chloride, also known as halite
Sodium chloride occurs naturally as the mineral halite, commonly called rock salt, 
... Table salt is also available as iodized salt with 0.1 percent potassium iodide by
... [DOC] [TLE] Sodium, Chemical Element - reaction, water, uses, elements ... [PAR] Compounds of sodium have been known, of course, throughout human history.