Chemical makeup of the human body
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The human body is a combination of elements and compounds. The average adult (specifically a 70 kilogram adult) is composed of:
[edit] Elements by percentage
| Element | Percentage[1] |
|---|---|
| Oxygen | 65 |
| Carbon | 18 |
| Hydrogen | 10 |
| Nitrogen | 3 |
| Calcium | 1.5 |
| Phosphorus | 1 |
| Sulfur | 0.25 |
| Potassium | .2 |
| Chlorine | 0.15 |
| Sodium | 0.15 |
| Magnesium | 0.05 |
| Iron | 0.006 |
| Fluorine | 0.0037 |
| Zinc | 0.0032 |
| Silicon | 0.002 |
| Zirconium | 0.0006 |
| Rubidium | 0.00046 |
| Strontium | 0.00046 |
| Bromine | 0.00029 |
| Lead | 0.00017 |
| Niobium | 0.00016 |
| Copper | 0.0001 |
| Aluminum | 0.000087 |
| Cadmium | 0.000072 |
| Boron | 0.000069 |
| Barium | 0.000031 |
| Arsenic | 0.000026 |
| Vanadium | 0.000026 |
| Tin | 0.000024 |
| Mercury | 0.000019 |
| Selenium | 0.000019 |
| Manganese | 0.000017 |
| Iodine | 0.000016 |
| Gold | 0.000014 |
| Nickel | 0.000014 |
| Molybdenum | 0.000013 |
| Titanium | 0.000013 |
| Tellurium | 0.000012 |
| Antimony | 0.000011 |
| Lithium | 0.0000031 |
| Chromium | 0.0000024 |
| Cesium | 0.0000021 |
| Cobalt | 0.0000021 |
| Silver | 0.000001 |
| Uranium | 0.00000013 |
| Beryllium | 0.000000005 |
| Radium | 0.00000000000000001 |
[edit] By mass
oxygen - 43 kg[2]
carbon - 16 kg[2]
hydrogen - 7 kg[2]
nitrogen - 1.8 kg[2]
calcium - 1.0 kg[2]
phosphorus - 780 g
potassium - 140 g[2]
sulfur - 140 g[2]
sodium - 100 g[2]
chlorine - 95 g[2]
magnesium - 19 g[2]
iron - 4.2 g[2]
fluorine - 2.6 g[2]
zinc - 2.3 g[2]
silicon - 1.0 g[2]
rubidium - 0.68 g[2]
strontium - 0.32 g[2]
bromine - 0.26 g[2]
lead - 0.12 g[2]
copper - 72 mg[2]
aluminum - 60 mg[2]
cadmium - 50 mg[2]
cerium - 40 mg[2]
barium - 22 mg[2]
iodine - 20 mg[2]
tin - 20 mg[2]
titanium - 20 mg[2]
boron - 18 mg[2]
nickel - 15 mg[2]
selenium - 15 mg[2]
chromium - 14 mg[2]
manganese - 12 mg[2]
arsenic - 7 mg[2]
lithium - 7 mg[2]
cesium - 6 mg[2]
mercury - 6 mg[2]
germanium - 5 mg[2]
molybdenum - 5 mg [2]
cobalt - 3 mg[2]
antimony - 2 mg[2]
silver - 2 mg[2]
niobium - 1.5 mg[2]
zirconium - 1 mg[2]
lanthanium - 0.8 mg[2]
gallium - 0.7 mg[2]
tellurium - 0.7 mg[2]
yttrium - 0.6 mg[2]
bismuth - 0.5 mg[2]
thallium - 0.5 mg[2]
indium - 0.4 mg[2]
gold - 0.2 mg[2]
scandium - 0.2 mg[2]
tantalum - 0.2 mg[2]
vanadium - 0.11 mg[2]
thorium - 0.1 mg[2]
uranium - 0.1 mg[2]
samarium - 50 µg[2]
beryllium - 36 µg[2]
tungsten - 20 µg[2]
[edit] References
- ^ Pocket Ref Third Edition - William J. Glover ISBN 1-85507-133-7 Page 324 which itself cited Geigy Scientific Tables, Ciba-Geigy Limited, Basle, Switzerland,1984
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf Emsley, J. (1998). The Elements, 3rd Ed., Clarendon Press:Oxford
