Catalog Number
ACMA00003170
Product Name
Platinum on carbon
Category
Fuel Cell Catalysts
Description
Silvery, whitish-gray, malleable, ductile metal. Mp: 1772°C; bp: 2187°C. Density: 21.45 g cm-3 at room conditions (very dense). Also shipped as a finely divided powder (platinum black), as a sponge, and as particles deposited on a supporting material such as alumina. Has strong catalytic activity in these forms; finely divided platinum can be dangerous to handle in the vicinity of other chemicals on this account. Used platinum catalysts are particularly dangerous and can be explosive.;OtherSolid;Solid;BLACK POWDER.;Silvery, whitish-gray, malleable, ductile metal.;Silvery, whitish-gray, malleable, ductile metal.
Molecular Weight
195.08g/mol
InChI Key
BASFCYQUMIYNBI-UHFFFAOYSA-N
Boiling Point
6921 °F at 760 mm Hg (NIOSH, 2016);3825 °C;3827 °C;6921°F;6921°F
Melting Point
3222 °F (NIOSH, 2016);1768.4 °C;1768.3°C;1769 °C;3222°F;3222°F
Density
21.45 (NIOSH, 2016);21.447 (calc);21.45 g/cm³;21.45;21.45
Solubility
Insoluble (NIOSH, 2016);Soluble in aqua regia. Insoluble in mineral and organic acids.;Solubility in water: insoluble;Insoluble
Application
Platinum is a white noble metal that looks very much like metallic silver found in copper ore. The name platinum comes from the Spanish word plata, meaning silver. Platinum compounds were used in the platinum printing process and for toning silver images.
Color/Form
Silver-gray, lustrous, malleable and ductile metal; face-centered cubic structure. Also prepd in the form of a black powder (platinum black) and as spongy masses (platinum sponge).
Corrosivity
Does not corrode or tarnish
Covalently-Bonded Unit Count
1
Exact Mass
194.964794g/mol
MeSH Entry Terms
Platinum;Platinum Black
Monoisotopic Mass
194.964794g/mol
Other Experimental
Sp heat: 0.0314 cal/g at 0 °C. Electrical resistivity: (20 deg) 10.6 uohm-cm.;/Platinum/ occurs naturally mainly as the isotopes (194)Pt, (195)Pt, and (196)Pt.;Heated platinum adsorbs large amounts of hydrogen; it is a strong complexing agent.
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);0.0187 Pa @ melting point;0 mmHg (approx);0 mmHg (approx)