Black Gum Rosin

Economical dark-grade rosin resin for industrial applications where color is not a critical requirement.

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Composition:

Monocarboxylic diterpene (resin) acids. A natural colophony resin distilled from pine oleoresin, dark grade with higher impurity content.

Chemical Formula:

C₁₀H₃₀O₂ (often listed as C₂₀H₃₀O₂)

Physical & Chemical Properties:

Color (Gardner)Dark Brown to Black
Acid Value≥ 140 mgKOH/g
Softening Point≥ 70 °C
Volatile Oil≤ 3.0%
Saponification Value150–220 mgKOH/g
Ash Content≥ 1.0%
Impurity / Solubility in Toluene≥ 3.0%
Applications:

Rubber Compounds

Friction Materials

Foundry Binders

Waterproofing Products

Low-Cost Adhesive Formulations

Industrial Processing Applications

Packaging:

20-ft Dry Container

80 Galvanized Iron Drums

225 kg or more net weight per drum

Form

Block Solid

CAS No.

8050-09-7

EINECS No.

232-475-7

HS Code

3806.10.00