Br Bromine     Atomic number : 35 
    Relative atomic mass (12C = 12.0000) :  79.904 
    P H Y S I C A L     D A T A
Group 17 non-metal
 
Density / kg m-3 :  4050 [123 K]; 3122.6 [293 K]; 7.59 [gas]
 
Melting point / K :  265.9 
 
Boiling point / K :  331.93
 
    D I S C O V E R Y
Bromine was discovered in 1826 by A.J. Balard at Montpellier, France, and C. Löwig at Heidelberg, Germany.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : n.a.
 
Earth's crust / p.p.m. : 0.37
 
Residence time / years : 1 × 108
 
Classification : accumulating
 
Oxidation state : -I
 
  
 
Seawater / p.p.m. : 65
    B I O L O G I C A L     D A T A
Level in humans
 
Blood / mg dm-3 : 4.7
 
Bone / p.p.m. : 6.7
 
Liver / p.p.m. : 0.2 - 7
 
Muscle / p.p.m. : 7.7
 
  
 
Daily dietary intake : 0.8 - 24 mg
 
Total mass of element
in average (70 kg) person :
260 mg

 

NetElements II  

A portrait of bromine 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.
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NetElements II last modified October 27th, 1999