Gum Rosin WW Grade
CAS No.: 8050-09-7
EINECS No.: 232-475-7
Formula: C19H29COOH
Other Names: greek pitch, colophony
Description
Gum rosin also named greek pitch or colophony, It is a kind of natural resin that are mainly composed of various kinds of resin acids, it can be dissolved easily in many organic solvents, and has special chemical activity, it can be esterified and neutralized with carboxyl, and reacted by double-bond, disproportionated, hydrogenated and polymerized to optimize its physicochemical property. Gum rosin can be widely used in manufactures of paper, coatings, inks, rubbers, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.
Features
? Soluble in various kinds of organic solvents.
? Comes with special chemical activity.
? Can be chemically reacted and widely used in in manufactures of paper, coatings, inks, rubbers, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.
Features
| Grade | WW Grade |
| Appearance | Transparent solid |
| Color | pale yellow |
| Softening point (R&B, °C, min) | 76 |
| Acid number (mgKOH/, min) | 166 |
| Alcohol insoluble substance (%,max) | 0.03 |
| Unsaponifiable matter (%,max) | 5 |
| Ash (%,max) | 0.02 |
Applications
? Widely used in manufactures of paper, coatings, inks, rubbers, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.
? Can be further processed as hydrogenated rosin, disproportionated rosin, polymerized rosin and other types of modified gum rosin.
Packaging
Galvanized iron drum, 225 KG/Drum, 4 drums/pallet, 96 drums/20'GP.
Storage & Transportation
Sealed well and stored in cool and dry place, can’t be stored and delivered together with pyrophorus, strong oxidants & acid.
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