Chemical Composition of the Human Body

Chemical Composition of the Human Body

Site Home Chemistry Home Site Index Chemistry Index Calculator Index About Us Privacy Policy

The table below shows the approximate quantities of the chemical elements present in an average 70kg man. Element             Amount / kg  Amount / Mol. Oxygen   43 2700 Carbon 16 1300 Hydrogen 7 7000 Nitrogen 1 .8 130 Calcium 1 .0 25 Phosphorus 0 .78 25 Sulphur 0 .14 4 .4 Potassium 0 .14 3 .6 Sodium 0 .10 4 .3 Chlorine 0 .095 2 .7 Magnesium 0 .019 0 .78 Silicon 0 .018 0 .64 Iron 0 .0042 0 .075 Fluorine 0 .0026 0 .14 Zinc 0 .0023 0 .035 Rubidium 0 .00032 0 .0037 Strontium 0 .00032 0 .0037 Bromine 0 .00020 0 .0025 Lead 0 .00012 0 .00058 Copper 0 .000072 0 .0011 Aluminium 0 .000061 0 .0023 Cadmium 0 .000050 0 .00044 Boron < 0 .000048 0 .0044 Barium 0 .000022 0 .00016 Tin < 0 .000017 0 .00014 Iodine 0 .000013 0 .00010 Manganese 0 .000012 0 .00022 Nickel 0 .000010 0 .00017 Gold < 0 .000010 0 .000051 Molybdenum < 0 .0000093 0 .000097 Chromium < 0 .0000018 0 .000035 Caesium 0 .0000015 0 .000011 Cobalt 0 .0000015 0 .000025 Uranium 0 .00000009 0 .00000038 Beryllium 0 .000000036 0 .0000040 Radium 3.1×10-14 1.4×10-13              Chemical composition of the human body by mass