Platinum and it

Platinum and its applications:

Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78.

Its name is derived from the Spanish term platina Del Pinto, which is literally translated into "little silver of the Pinto River."

It is in Group 10 of the periodic table of elements. A dense, malleable, ductile, precious, gray-white transition metal, platinum is resistant to corrosion and occurs in some nickel and copper ores along with some native deposits. Platinum is used in jewellery, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and catalytic converters. Some of its compounds are used in chemotherapy for cancer patients.


Boiling Point: 3800 oC

Melting Point: 1769 oC

Density at 20 oC: 21.45 g/cm3 (0.774 lb/in3)

Electrical Resistivity: 98.5 nΩ m at 0 oC

Temperature Coefficient: 0.0039/K from 0 oC to 100 oC

Tensile Properties (Annealed at 700 oC):

       Tensile Strength: 125 - 165 MPa (18 - 24 ksi)

       Proportional Limit: <13.8 MPa (<2 ksi)

       Elongation: 30 - 40% in 50mm (2 in)

Tensile Properties (Hard Drawn, 50% Cold Worked):

       Tensile Strength: 205 - 240 MPa (30 - 35 ksi)

       Elongation: 1 - 3% in 50mm (2 in)

       Poisson's Ratio: 0.39

Elastic Modulus at 20 oC (Annealed at 700 oC):

       Tension: Static: 171 GPa (24.5 x 106 psi)

       Dynamic: 169 GPa (24.5 x 106 psi)

Elastic Modulus at 20 oC (Hard Drawn, 50% Cold-Worked):

       Tension: Static: 156 GPa (22.6 x 106 psi)  


The number and scope of platinum's industrial uses have skyrocketed during this century to include neurosurgical and dental apparatus, drugs for cancer treatment, computer and automotive equipment. Indeed, one of every five goods either contains or is produced using platinum. One of its most essential uses is in auto catalytic converters. Within autocatalysts, platinum converts harmful emissions into carbon dioxide and water. Nearly one third of newly mined platinum is used in this fashion.  





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