Sodium chloride (chemical formula NaCl) is an inorganic salt formed by the ionic bonding of sodium and chloride ions.
It is the largest dissolved constituent of seawater and is mass produced by the evaporation of seawater in salt farms or by the mining of rock salt.
Sodium chloride produced in this way will always containt impurities from other ions in seawater.
- ↑ http://www.chemicalbook.com/ChemicalProductProperty_EN_CB4104636.htm
- ↑ http://www.madehow.com/Volume-2/Salt.html
- ↑ http://www.angelo.edu/faculty/kboudrea/demos/sodium_chlorine/sodium_chlorine.htm