Graphite is a fascinating material with unique properties.
One of the most intriguing aspects of graphite is its melting point.
5 Key Facts You Need to Know
1. Graphite's Melting Point
Yes, graphite does have a melting point.
The melting point of graphite is similar to that of diamond, which is around 3600°C.
2. Sublimation Instead of Melting
Instead of melting, graphite undergoes sublimation at its melting point.
This means it transitions directly from a solid to a gas state.
3. Sensitivity to Oxygen
It is important to note that graphite is sensitive to oxygen.
Graphite should not be exposed to air at elevated temperatures.
Oxidation of graphite starts around 500°C and can result in a loss of mass.
Continued exposure to air at high temperatures can lead to structural failure of the graphite material.
4. High-Temperature Applications
Graphite can be used at high temperatures under low pressure conditions.
At pressures down to 10-2 torr, graphite can be used up to 2450°C.
At pressures down to 10-4 torr, graphite can typically be operated up to 2150°C.
5. Chemical Inertness and Thermal Resistance
Graphite is a chemically inert and temperature-resistant mineral.
It resists thermal shock, oxidation, and abrasion well.
Graphite does not melt, burn, or chemically change in extreme conditions.
It can maintain its structure and form even at temperatures as high as 5000°F.
This makes it suitable for use in furnaces and high-heat processes.
Continue Exploring, Consult Our Experts
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With a melting point of around 3600°C and the ability to maintain its structure at temperatures as high as 5000°F, graphite is the ideal material for furnaces and other high heat applications.
Its chemical inertness, resistance to thermal shock, oxidation, and abrasions, as well as its excellent conductivity of electricity and heat, make it a top choice for laboratories.
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