This kind of water, besides generally containing those inorganic saline bodies found in river-water, holds in solution certain other compounds, such as iodides, fluorides, etc. The nature of these substances will be seen at a glance from the subjoined analysis of a sample of sea-water:

Water ..

.

966.14054

Sodium chloride

26.43918

Potassium chloride

. 0.74619

Magnesium bromide

0.07052

Magnesium chloride .

. 3.15083

Magnesium sulphate

2.06608

Magnesium carbonate .

traces

Calcium sulphate . .

1.33158

Calcium carbonate

. 0.04754

Lithium chloride .

traces

Ammonium chloride .

. 0.00044

Magnesium nitrate

0.00207

Silica

traces

Ferrous carbonate .

0.00503

33.85946

1000.00000