Gum Rosin WW
| Formula: | C₂₀H₃₀O₂ (approximate, mixture of resin acids, mainly abietic acid) |
| CAS Number: | 8050-09-7 |
| EC Number (EINECS): | 232-475-7 |
| HS Code: | 38061010 |
| UN Number: | Not classified as dangerous goods |
| IUPAC Name: | Resin acids and Rosin acids, esters with glycerol (general) |
| Also Known As: | Colophony; WW Grade Rosin; Gum Resin |
| Molecular Weight, g/mol: | ~302 (average for abietic acid component) |
Typical Specifications
| Appearance: | Pale yellow to water white brittle solid |
| Odor: | Characteristic resinous odor |
| Solubility: | Soluble in alcohols, esters, hydrocarbons |
| Purity, %: | ≥98 |
| Grades Available: | WW, X, WG, N, M |
| Packaging: | 225kg steel drums, 25kg bags, jumbo bags |
Applications / Uses
Primary Applications
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Production of adhesives, pressure-sensitive adhesives, and hot melt glues
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Ingredient in paper sizing and coatings
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Raw material for ester gum (used in food-grade applications like chewing gum base)
Secondary Applications
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Used in rubber compounding as tackifier
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Ingredient in varnishes, paints, and inks
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Used in soaps and detergents as emulsifier and stabilizer
End Industries Served: Adhesives, Rubber, Paper, Inks & Coatings, Paints, Soaps & Detergents, Food (indirect use via ester gum)
Safety & Handling Information
Hazard Class (GHS): Not classified as hazardous in solid form; dust may cause irritation
Hazard Statements (H-Codes):
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H315: Causes skin irritation
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H319: Causes eye irritation
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H335: May cause respiratory irritation (dust/fumes)
Precautionary Statements (P-Codes):
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P261: Avoid breathing dust/fume
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P280: Wear protective gloves/eye protection
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water for several minutes
Storage Conditions
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Store in a cool, dry, ventilated place
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Keep away from direct sunlight and sources of heat
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Protect from moisture to prevent oxidation and darkening
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods