What are the main salts in seawater?

Answer 1

Oceans are typically 3.0-3.4% salt depending on where you're taking samples from. If you're near a freshwater outlet, you will have less dissolved salts. If you're in the middle of the ocean, you will have the opposite effect.

Answer 2

Sea water contains about 35000 parts per million of salt. the vast majority of the salt you find in sea water is Sodium Chloride or common salt.

Answer 3

The concentration of salts is expressed in g/L.

Answer 4

Sea water contain chlorides of Na, Mg, Ca, K and sulfates.

The composition of the dried salt is: 55 % Cl, 30,8 % Na, 7,7 % sulfate, 3,7 % Mg, 1,2 % Ca, 1,1 % K etc.

Answer 5

The most important salt in the sea waters is sodium chloride; other salts are calcium chloride, magnesium chloride, potassium chloride.

Answer 6

The most important is sodium chloride (approx. 97 %); also exist calcium and magnesium chloride.

Answer 7

A table with the composition of ocean water exist at the link below; the most important salt (more then 80 %) is sodium chloride.