Tar Biography

.]]Tar is a viscous black liquid derived from the destructive distillation of organic matter. Most tar is produced from coal as a byproduct of coke production, but it can also be produced from petroleum, peat or wood. Types of tar General The word "tar" is used to describe several distinct substances. Naturally occurring "tar pits" (e.g. the La Brea Tar Pits in Los Angeles) actually contain asphalt, not tar, and are more accurately known as asphalt pits. Tar sand deposits contain various mixtures of sand (or rock) with bitumen or heavy crude oil rather than tar, as does the Tar Tunnel in Shropshire. "Rangoon tar", also known as "Burmese Oil" or "Burmese Naphtha", is actually petroleum. "Tar" and "pitch " are sometimes used interchangeably; however, pitch is considered more solid while tar is more liquid. Coal In English and French, "tar" is a substance primarily derived from coal. It was formerly one of the products of a gasworks. Tar made from coal or petroleum is considere

Source: http://en.wikipedia.org/wiki/Tar
 

Tar Lyrics

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