What it lead?
Lead is a chemical element in the table
periodical that has the symbol Pb and number
82 atoms.
(Wikipedia.org)
The characteristic features of lead
327.46 Melting point 0C
boiling point of 1740 0C
11:34 density gr / cm 3
The atomic weight of 207.20
Heat of fusion 4.77 kJ / mol
heat of vaporization 179.5 kJ / mol
the heat capacity 26 650 kJ / (mol.K)
magnetic properties of diamagnetic
resistivitaslistrik nΩ 208-m
thermal conductivity of 35.5 W / (m.K)
thermal expansion of 28.9 μm / (m.K)
Young modulus of 16 GPa
shear modulus 5.6 GPa
bulk modulus of 46 GPa
Brinell hardness 38.3 MPa
usefulness of lead
> Production of storage batteries for automobiles, in which the use of lead and metallic components
> For metal products such as ammunition, wire coatings, pipes and solder, chemicals, dyes, and others.
> As coloring paint
> As an ingredient in the manufacture of ceramic coatings
EmoticonEmoticon