| Customization: | Available |
|---|---|
| Type: | Resin Rosin |
| Grade: | First Grade |
|
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Gum rosin is a remarkable natural resin extracted from the sap of pine trees, celebrated for its eco-friendly, non-toxic, and biodegradable nature. This exquisite light yellow to transparent solid not only exudes a subtle pine aroma but also boasts a density of 1.07-1.09g/cm³, with an impressive softening point between 70-85ºC. Its acid value, measuring approximately 150-180mg KOH/g, showcases its excellent solubility in organic solvents like ethanol and acetone, while remaining insoluble in water.
| Property | Specification | Test Method/Reference |
|---|---|---|
| Basic Information | ||
| Product Name | Premium Grade Masson Pine Rosin | - |
| CAS No. | 8050-09-7 | CAS Database |
| EPA Registry | Rosin (8050-09-7) | EPA Substance Registry System |
| Physical Properties | ||
| Appearance | Dark yellow transparent solid | Visual inspection |
| Form | Solid lumps or granules | - |
| Color | Dark yellow | Visual comparison |
| Melting Point | 70-72°C | ASTM D87 |
| Density | 1.07 g/cm³ | ASTM D792 |
| Specific Gravity | 1.07-1.08 | ASTM D792 |
| Flash Point | 180°C | ASTM D93 |
| Chemical Properties | ||
| Solubility | Soluble in alcohol, benzene, ether | USP <611> |
| Water Solubility | Insoluble in water | USP <611> |
| Acid Value | ~166 mg KOH/g (typical) | ASTM D465 |
| Stability & Safety | ||
| Stability | Stable. Combustible | - |
| Incompatibilities | Oxidizing agents | - |
| Storage Temperature | Room Temperature | - |
| Exposure Limits | TWA 0.1 mg/m³ (NIOSH) | NIOSH Standards |
| Merck Index | 14,8266 | Merck Reference |
| Quality Standards | ||
| Grade | Premium Grade (First Grade) | GB/T 8145-2003 |
| Source | Pinus massoniana Lamb | - |
| Packaging | ||
| Standard Packaging | 25kg/bag (PP woven bag with PE liner) | - |
Renowned for its exceptional adhesive and insulating qualities, gum rosin is indispensable across various industrial sectors. In the electronics industry, it elevates PCB soldering quality as a superior soldering flux material. As a vital component in adhesive manufacturing, it's a cornerstone ingredient for pressure-sensitive and hot melt adhesives. Instrument maintenance professionals recognize its value with violin rosin, which enhances string friction and sound clarity. Beyond this, gum rosin finds applications in the pharmaceutical industry as a plaster base, in personal care products as a soap additive, and in the rubber industry as an elastic enhancer, proving its versatility and value.
Gum rosin is available in diverse grades such as industrial, instrument, and pharmaceutical, tailored to meet various industry needs. Typically packaged in 25kg bags of either chunks or granules, it is designed for industrial use. For optimal preservation, store this valuable resin in a cool, dry place, away from heat sources. It is essential to avoid mixing different grades and to ensure usage in well-ventilated areas. With its naturally eco-friendly properties and stable chemical nature, gum rosin remains an indispensable raw material across numerous industrial applications.
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