Cd Cadmium     Atomic number : 48 
    Relative atomic mass (12C = 12.0000) :  112.411 
    P H Y S I C A L     D A T A
Group 12 transition metal
 
Density / kg m-3 :  8650 [293 K]; 7996 [liquid at m.p.]
 
Melting point / K :  594.1 
 
Boiling point / K :  1038
 
    D I S C O V E R Y
Discovered in 1817 by F. Stromeyer at Göttingen, Germany.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : 71
 
Earth's crust / p.p.m. : 0.11
 
Residence time / years : 30
 
Classification : recycled
 
Oxidation state : II
 
  
 
Seawater / p.p.m. :
    Atlantic surface : 1.1 × 10-6
    Atlantic deep : 38 × 10-6
    Pacific surface : 1.1 × 10-6
    Pacific deep : 100 × 10-6
    B I O L O G I C A L     D A T A
Level in humans
 
Blood / mg dm-3 : 0.0052
 
Bone / p.p.m. : 1.8
 
Liver / p.p.m. : 2 - 22
 
Muscle / p.p.m. : 0.14 - 3.2
 
  
 
Daily dietary intake : 0.007 - 3 mg
 
Total mass of element
in average (70 kg) person :
50 mg

 

NetElements II  

A portrait of cadmium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements.


Text copyright John Emsley 1999.   HTML and page layout copyright Simon Hall 1999.
Unauthorised reproduction of any aspect of this site is strictly prohibited.
NetElements II last modified October 27th, 1999