Pitch (resin)

Pitch is a viscous liquid that is derived from distillation of natural resins from plants or from the carbonization of organic matter. It is a type of bitumen, which is a form of petroleum that is semi-solid at room temperature. Pitch has been used for centuries in various applications, including waterproofing, adhesive, and as a traditional medicine.

History

The use of pitch dates back to ancient times. The Egyptians used pitch for the mummification process, while the Romans used it in construction and shipbuilding. In the Middle Ages, pitch was used as a sealant for wooden vessels and as an adhesive in the construction of buildings.

Production

Pitch is produced by the distillation of plant resins or the carbonization of organic matter. The process involves heating the material to a high temperature in a process known as pyrolysis. The resulting liquid is then collected and cooled to form pitch.

Uses

Pitch has a wide range of uses. It is used as a waterproofing agent in the construction industry, particularly in roofing and in the sealing of pipes. It is also used as an adhesive in various applications, including the manufacture of plywood and particleboard.

In traditional medicine, pitch has been used to treat skin conditions such as eczema and psoriasis. It is also used in the production of certain types of soap.

Health and Safety

While pitch is a natural product, it can be harmful if ingested or if it comes into contact with the skin or eyes. It is also flammable, and care should be taken when handling or storing pitch.

See Also

• Resin
• Bitumen
• Pyrolysis