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turps
Mineral turpentine, also known as turpentine substitute, turps substitute, or just turps is an inexpensive petroleum-based replacement for the vegetable-based turpentine. It is commonly used as a paint thinner for thinning oil-based paint and cleaning brushes, and as an organic solvent in other applications.
Mineral turpentine is a hydrotreated light distillate of petroleum, and consists of a complex mixture of highly refined hydrocarbon distillates mainly in the C9-C16 range. The material is a colorless transparent liquid at room temperature. The liquid is highly volatile and the vapours are flammable. It can be a very dangerous inhalant.
and genuine turpentine
Turpentine (also called spirit of turpentine, oil of turpentine, and wood turpentine) is a fluid obtained by the distillation of resin obtained from trees, mainly pine trees. It is composed of terpenes, mainly the monoterpenes alpha-pinene and beta-pinene. It is sometimes known colloquially as turps, but this more often refers to turpentine substitute (or mineral turpentine).
The word turpentine derives (via French and Latin) from the Greek word terebinthine, the name of a species of tree, the terebinth tree, from whose sap the spirit was originally distilled.[1]