The Mean Density of Pitch is 1153.0 kg/m³
Pitch
Pitch is a thick, sticky, tar-like substance that can come from natural or industrial sources. It is black or dark brown, water-resistant, and can be hard or semi-solid at room temperature.
Types of Pitch
- Natural Pitch (Plant-Based)
- Comes from resins of trees (especially conifers like pine)
- Also known as pine pitch or tree pitch
- Traditionally used for:
- Sealing boats and roofs
- Torches
- Medicinal salves
- Petroleum-Based Pitch
- Byproduct of refining crude oil or coal tar
- Includes:
- Asphalt (used in paving)
- Coal tar pitch (used in roofing, pipe coating, carbon anodes)
- Very dense and water-resistant
- Bitumen (Closely Related)
- Sometimes used interchangeably with pitch, though bitumen typically refers to the more liquid or soft form
Pitch is sticky when warm, brittle when cold. It is highly viscous but flows extremely slowly. Pitch repels water