Sodium chloride or common salt is the chemical compound NaCl . Underground salt deposits are found in both bedded . Some salt is one the surface, the dried-up residue of ancient seas like the famed Bonneville Salt Flats in Utah.
Salt even arrives on earth from outer space .
Sodium chloride crystals are cubic in form . Table salt, when viewed under a magnifying glass , can be seen to consist of tiny cubes tightly bound together . The atomic weight of elemental chlorine is 35.4527 and that of sodium is 22.989768. Chemical Sampling Information database. Discrete crystals can be seen in rock salt used for deicing.