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    Gum Turpentine

    Gum Turpentine in Tradeasia

    IUPAC Name

    Turpentine

    Cas Number

    8006-64-2

    HS Code

    38051020

    Formula

    C12H20O7

    Basic Info

    Appearance

    Colourless Liquid

    Common Names

    L-Turpentine

    Packaging

    175 kg Galvanized Iron Drum

    What is Gum Turpentine?

    Turpentine also called the spirit of turpentine, oil of turpentine, wood turpentine or gum turpentine is a fluid obtained by the distillation of resin obtained from trees, mainly pine trees. It is composed of terpenes, mainly monoterpenes alpha-pinene and beta-pinene. It has a paint-like odor.

    Manufacturing Process

    Turpentine oil is generally produced in countries with an extensive number of pine trees. Turpentines from Europe are derived from the cluster pine (P. pinaster) and the Scotch pine (P. sylvestris), whereas the turpentines from the United States are derived from the longleaf pine (P. palustris) and the slash pine (P. caribaea).

    Turpentine oil is classified according to the way it is produced. Sulfate turpentine, used widely in the chemicals industry, is obtained as a by-product of the kraft when the wood pulp is cooked during the course of kraft paper manufacture. Wood turpentine is obtained by the steam distillation of shredded bits of dead pine wood, while gum turpentine results from the distillation of the exudate of the living pine tree obtained by tapping. Tapping the live pine tree would yield crude turpentine that typically contains 65% gum rosin and 18% gum turpentine.

    Chemical Intermediates

    Turpentine is also used as a source of raw materials in the synthesis of fragrant chemical commercial compounds such as camphor, linalool, alpha-terpineol, and geraniol. These products are usually produced from alpha-pinene and beta-pinene, two of the chief chemical components of turpentine.

    Solvent Industry

    Turpentine has more solvency than mineral spirits or odorless mineral spirits. Its high solvent strength makes it the best choice for thinning oils and natural resins. Turpentine is considered to be a better solvent than mineral spirits, and the best solvent for natural resins, such as dammar and mastic. It readily dissolves most of the natural varnish resins. Turpentine is a solvent for many of the alkyd resins.

    While both turpentine and mineral spirits are good brush cleaners, turpentine can remove paint that has hardened slightly. Mineral spirits will only dissolve fresh oil paint. Gum turpentine or spirits of gum turpentine is recommended for artists' painting or varnish applications over other turpentine products, such as wood turpentine. Wood turpentine can be used as a solvent for oil paint, but gum turpentine is more suitable for natural varnishes.

     

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