A particular form of carbon distinguished by hexagonal crystallinity. Characterized by its extreme softness (soapy feel),; iron-black color; metallic luster; low specific gravity; odorless, infusibility, tasteless, non-toxic and chemically inert to acids and alkalis under most conditions.
Chemical Name: Carbon, like the diamond; often impure from the presence of ferric oxide, clay, etc.
Chemical Formula: C
The various graphite grade typical purities are:
- Amorphous= 84.0%,
- Crystalline flake= 87.8% to 95.6%,
- Crystalline vein= 98.0%,
- Primary artificial/synthetic= 99.9%,
- Secondary artificial/synthetic= 99.6% and
- Calcined petroleum coke= 99.7%
Many different standard granulations are available between 5 mesh USS and 0.7 microns.
The primary uses are making crucibles and other refractory products, lubricants, paint, stove polish, “lead” pencils, electrodes, brake linings, batteries, powder metallurgy, fertilizers, glass manufacture, conductive coatings, and for foundry facings.
Natural graphite has found uses as the marking material (“lead”) in common pencils, in zinc-carbon batteries, an electric motor brushes, and various specialized applications.
A new application for nuclear grade graphite is in Very High-Temperature Reactors (VHTR) and the Next Generation Nuclear Plant (NGNP).
Jars, pails, drums, fiberboard containers, bulk bags, and loose bulk
|Molecular Weight (g/mol.)||12.011|
|Apparent Density (g/cm3)||2.25|
|Bulk Density (g/cm3)|
|Melting Point (°C)||3600°C|
|Boiling Point (°C)||4200°C|
|Surface Area (m3/g)||7.2|
|Thermal Conductivity @230°C (cal/s-cm-°C)||.38|
|Mohs Hardness @20°C|