Carbon black

Carbon Black

Carbon black (pronunciation: /ˈkɑːrbən blæk/) is a form of paracrystalline carbon that has a high surface-area-to-volume ratio, albeit lower than that of activated carbon. It is a black powder used as a pigment and reinforcement in rubber products.

Etymology

The term "carbon black" originated in the 19th century and was a popular name for carbon goods such as wood charcoal, lampblack, or gas carbon. The term was in use by the early 20th century and has been the primary name for these materials ever since.

Production

Carbon black is produced by the thermal decomposition of heavy petroleum products such as FCC tar, coal tar, or ethylene cracking tar. Carbon black is a form of paracrystalline carbon that has a high surface-area-to-volume ratio, albeit lower than that of activated carbon.

Uses

Carbon black is mainly used as a reinforcing filler in tires and other rubber products. In plastics, paints, and inks carbon black is used as a color pigment.

Health Effects

Exposure to carbon black can cause respiratory issues such as bronchitis or pneumoconiosis. Long-term exposure can lead to lung disease.

Related Terms

• Activated carbon
• Thermal decomposition
• FCC tar
• Coal tar
• Ethylene cracking tar
• Pneumoconiosis

External links

• Medical encyclopedia article on Carbon black
• Wikipedia's article - Carbon black

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