Engineering Your Success
At our facility, we control every variable of the extraction and distillation cycle. Whether you require the raw power of Crude Wood Rosin, the refined stability of Wood Rosin or the volatile purity of Turpentine, our engineering-driven approach guarantees consistency in every drum.
Crude Wood Rosin
The essential foundation for rosin-based chemistry.
Extracted directly from pine wood through our precision Batch Extraction process, our Crude Wood Rosin serves as a high-quality raw material for further industrial processing and refining.
Technical Property Typical Range Standard Test Method
Acid Value 145−170 mg KOH/g ASTM D465
Softening Point 70∘C−85∘C ASTM D36 (Ring & Ball)
Insolubles (in Toluene) Max 0.05%−0.15% ASTM D269
Saponification Value 165−178 mg KOH/g ASTM D464
Ash Content Max 0.04% ASTM D1063
CAS Number: 8050-09-7
HS Code: 3806.10
Wood Rosin
Wood Rosin is a natural, bio-based resin extracted from the aged stumps of pine trees (Pinus species). Unlike Gum Rosin (obtained from tapping living trees) or Tall Oil Rosin (a by-product of the Kraft paper process), Wood Rosin is characterized by its unique chemical composition, high density, and excellent thermal stability. It consists primarily of a complex mixture of abietic-type and pimaric-type resin acids, making it a highly reactive and valuable intermediate in industrial organic chemistry.
Chemical Composition & Structure
The industrial utility of wood rosin is driven by its specific chemical footprint. It is composed of approximately 90% resin acids and 10% neutral, non-acidic matter:
Resin Acids (ca. 90%): The major components are monocarboxylic acids with the empirical formula . These are divided into two structural groups:
Abietic-type acids(Abietic, Neoabietic, Palustric, and Dehydroabietic acid) – featuring conjugated double bonds that allow for easy isomerization and chemical modification.
Pimaric-type acids(Pimaric, Isopimaric, and Sandaracopimaric acid) – possessing non-conjugated double bonds, providing distinct structural stability.
Neutral Fractions (ca. 10%):Consisting of high-molecular-weight esters, terpenes, alcohols, and unsaponifiable hydrocarbons that contribute to the resin's unique viscosity and tack profiles.
Derivatives of Wood Rosin
Glycerol Ester of Wood Rosin (GEWR / E445): Extensively used as a clouding agent and beverage stabilizer in the food and drink industry, as well as in chewing gum bases.
Pentaerythritol Esters: Possess higher softening points and exceptional thermal resistance, making them the gold standard tackifier for Hot-Melt Adhesives (HMA) and Pressure-Sensitive Adhesives (PSA).
Turpentine - Pine Oil - Pine Tar
Wood Turpentine (The Light Fraction)
Recovered as the most volatile component during our distillation, our Turpentine is a high-purity solvent.
Pine Oil (The Mid Fraction)
Extracted through controlled thermal processing, our Pine Oil is rich in terpene alcohols, offering excellent wetting and emulsifying properties.
Pine Tar (The Heavy Fraction)
The dark, viscous, and carbon-rich co-product of our specialized extraction process. It is known for its incredible preservative and water-repelling qualities.