| Customization: | Available |
|---|---|
| Type: | Resin Rosin |
| Grade: | First Grade |
|
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Gum rosin, a true marvel of nature, is a pristine resin sourced from the sap of pine trees. Celebrated for its environmentally friendly, non-toxic, and biodegradable virtues, this light yellow to transparent solid captivates with its delicate pine aroma. With a precise density of 1.07-1.09 g/cm³ and a softening point spanning 70-85ºC, it offers remarkable versatility. Its acid value ranges from 150-180 mg KOH/g, showcasing excellent solubility in organic solvents such as ethanol and acetone, while remaining steadfastly 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) | - |
Gum rosin is highly esteemed for its exceptional adhesive and insulating qualities, making it indispensable across numerous industrial domains. In the realm of electronics, it excels as a premium soldering flux material, significantly elevating PCB soldering standards. Within adhesive manufacturing, it stands as a pivotal component in the creation of both pressure-sensitive and hot melt adhesives. For instrument care, professional violin rosin enhances string friction, thereby enriching sound quality. Furthermore, in the pharmaceutical sector, it serves as a reliable plaster base, while in personal care products, it acts as a beneficial soap additive. In the rubber industry, gum rosin contributes as an effective elastic enhancer, showcasing its diverse utility.
Gum rosin is available in an array of grades, including industrial, instrument, and pharmaceutical, to meet diverse application demands. Typically, it is packaged in 25kg bags, either as chunks or granules, ideal for industrial purposes. To maintain its pristine condition, storage in a cool, dry place, away from heat, is essential, ensuring that different grades are not mixed. Usage in well-ventilated areas is recommended. With its natural, environmentally friendly attributes, stable chemical profile, and extensive range of applications, gum rosin is an indispensable raw material in the landscape of industrial production.
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