Black Gum Rosin

Black Gum Rosin

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  • 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid
  • 3806.10.10
  • C20H30O2

  • Black Crystal
  • 8050-09-7
  • Colophony, Resin acid, Abieta-7,13-dien-18-oic acid
  • (230 kg/ 80 IRON DRUM) 22
    54 MTs
Grade Origin Download
Low Grade


Brief Overview:

Gum rosin is an organic compound of monoterpene, turpentine and resin acid. Also known as colophony or rosin, it is a solid form of pine oleoresin from pine trees (mostly conifers). It is produced by heating fresh liquid resin in order to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from pale black to amber. Rosin is brittle at room temperature, but melts at higher temperatures. It is insoluble in water and soluble in organic solvents. Gum Rosin also has a faint piny odour. It consists mostly of different resin acids, especially abietic acid.

Manufacturing Process:

Gum Rosin is produced from the crude pine resin collected from pine trees. The resin is subjected to distillation and the distillation process is carried out in large copper stills. The volatile liquid terpene components would separate from the mixture as it vaporizes at a temperature between 100 to 160⁰C, leaving behind fluid rosin as the distillate. This fluid rosin is collected and purified by passing it through straining wadding. The condensate left behind is called turpentine oil.

Cosmetics Industry :

The residue left after the distillation of the volatile oil of oleoresin obtained from Pinus palustris and other species of Pinaceae. It is less and less used in cosmetics for the benefit of its esters, in cosmetics. It is authorized in Bio.

Adhesive Agent :

Rosin, or more correctly rosin acid, is one of the oldest raw materials for the adhesives industry, either as such or converted to derivatives. Three sources of rosin are used for resin manufacture, gum rosin, wood rosin and tall oil rosin, all generated from the pine tree.

Pulp and Paper Industry :

Rosin is added to paper pulp to increase resistance to water and other liquids. Alum (short for aluminum sulfate) is added to help the rosin

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