The make-up of sea water

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to those who r interested in the breakdowns of sea water...

Major Elements. (All measurements in mg/l)

Chlorine 18880

Sodium 10770

Magnesium 1290

Sulphur 884

Calcium 412.1

Potassium 399

Bromine 67.3

Carbon 28

Nitrogen 15

Strontium 7.9

Boron 4.5

Silicon 2

Fluorine 1.3

Trace Elements. (All measurements in ug/l)

Lithium 180

Rubidium 120

Iodine 60

Phosphorus 60

Molybdenum 10

Zinc 4.9

Argon 4.3

Arsenic 3.7

Uranium 3.2

Vanadium 2.5

Aluminium 2

Barium 2

Iron 2

Nickel 1.7

Titanium 1

Copper 0.5

Cesium 0.4

Chromium 0.3

Antimony 0.24

Manganese 0.2

Krypton 0.2

Selenium 0.2

Neon 0.12

Cadmium 0.1

Wolfram 0.1

Cobalt 0.05

Germanium 0.05

Xenon 0.05

Silver 0.04

Gallium 0.03

Lead 0.03

Zirconium 0.03

Bismuth 0.02

Mercury 0.02

Niobium 0.01

Thallium 0.01

Thorium 0.01

Tin 0.01

Hafnium 0.007

Helium 0.0068

Beryllium 0.0056

Gold 0.004

Rhenium 0.004

Lanthanum 0.003

Neodymium 0.003

Tantalum .003

Yttrium 0.0013

Cerium 0.001

Dysprosium 0.0009

Erbium 0.0008

Ytterbium 0.0008

Gadolinium 0.0007

Praseodymium 0.0006

Scandium 0.0006

Holmium 0.0002

Lutetium 0.0002

Thorium 0.0002

Indium 0.0001

Terbium 0.0001

Samarium 0.00005

Europium 0.00001

Radium 0. 00000007

Protactinium 0. 00000005

Radon 0. 000000000006

Constituents with a tiny presence.

Technetium

Ruthenium

Rhodium

Palladium

Osmium

Iridium

Platinum

Astatine

Francium

Actinium

(Reference: 'Baensch Marine Atlas'. Helmut Debelius & Hans A. Baensch)