How Sea Water gets its Salts


Salts from the sea – Sea-water is a mixture of various salts such as magnesium, potassium metals, calcium, and sodium.

In fact, sea-water contains about 3.6 percent by mass of dissolved salts which include the following salts

  • Sodium chloride (Common salt) – 2.8 percent
  • Magnesium salts – 0.6 percent
  • Potassium salts – 0.1 percent
  • Calcium salts – 0.1 percent

Thus, the most abundant salt present in the sea-water is sodium chloride (common salt).

Preparation of Common Salt from Sea-Water – Common salt is the most abundant salt is present in the sea-water. Therefore, sodium salt (common salt) is prepared commercially from sea-water.  The common salt is prepared from sea-water as follows

Sea-water is collected in small lagoons (shallow lakes) on the shores of the sea in coastal areas. This sea-water is then allowed to evaporate by the heat of the sun. After that, all the sea-water is collected in the…

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