 |
 |
 |
||
 |
 |
|||
 |
||||
 |
|
|
|
|
|
|
|
|
||
|
|
|
|||
|
|
||||
|
|
|
|
|
|
Metal > MolybdenumMo - Molybdenum This transition metal was discovered by Scheele in 1778 and extracted in metallic form in 1783 by P. H. Hjelm in Sweden. Atomic number - 42 Density g/mL 10 .2 Atomic weight u 95 .94 Melting point K 2890 Bonding radius A 1 .3 Boiling point K 4912 Atomic radius A 2 .01 Heat of vaporization kJ/mol 598 Ionization Potential V 7 .099 Heat of fusion kJ/mol 32 Electronegativity - 2 .16 Specific heat J/gK 0 .25 The oxide is a strong acid. Crystal are body centered cubic. Electron config. : [Kr] 4d5 5s1 Definition: Its use as an alloying element in steel increases hardenability and in low alloy steels reduces the risk of temper brittleness. When added to stainless steels it increases their resistance to corrosion. It is also used in high speed steels.
|
|
|
Metal Resources Directory an information portal on various metal industries in the world. Metal mining companies, metal processing companies, product manufacturing industries list of metal industries high temp metals at Metal Resource Link Partners Industry Metal | Cnc Machines | Metal Information | Site Map | Contact Us |