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Gum Rosin Lumps, Honduran, Grade WG/WW
DOWNLOAD SDSHonduran Gum Rosin Lumps (HROSIN) are high-grade colophony derived from the Pinus Oocarpa species in Honduras. This semi-transparent pine rosin varies in color from pale yellow to light brown and contains about 10% natural unsaponifiable matter, which imparts anticrystalline properties to the rosin and its compounds. The product is widely used in adhesives, coatings, chewing gums, cosmetics, linoleum, paints, printing inks, resins, rubber, sizes, and varnishes.
Product Specifications
| Color Grade USDA | WG/WW |
| Appearance | Pale Yellow, Transparent |
| Softening Point (Ring & Ball) | 66 – 72°C |
| Acid Number (mgKOH/g) | 147 – 155 |
| Specific Gravity @ 25°C | 1.06 – 1.08 |
| Refractive Index @ 20°C | 1.540 |
| Unsaponifiable Matter | 7 – 12.1% |
| Toluene Insolubles | 0.01% Max. |
| Iron Content | 15 PPM Max. |
| Ash Content | 0.01% Max. |
| Volatile Matter | Negligible |
| Flash Point °C (COC) | Above 204°C |
Applications and Benefits:
- Used in adhesives for strong bonding properties.
- for coatings, varnishes, and linoleum production.
- Popular in chewing gums and cosmetics formulations.
- Widely applied in paints, printing inks, and resins.
- Suitable for rubber, sizes, and industrial applications.
Caution:
Handle with appropriate safety measures. Refer to the SDS for detailed safety and handling instructions.
Chromium Oxide Green (Chromic Oxide; Chromium(III) Oxide)
Chromium(III) oxide (Cr₂O₃), also known as chromic oxide, is an inorganic compound and a principal oxide of chromium. Renowned for its stability and vibrant green hue, it serves as a green pigment in paints, inks, glasses, and ceramic glazes. When used in glazes, Cr₂O₃ creates a range of green shades, including lime green, kelly green, and black. Its green tones can be modified with small additions of other oxides, like cobalt or copper oxide. Chromium oxide green is also used in polishing pastes, catalysts, and as an advanced green pigment for various industries.
Product Specifications
| Chemical Formula | Cr₂O₃ |
| Purity | 99.24% |
| Average Particle Size | 8 Micron |
| Color Index | Pigment Green 17 (77288) |
| Moisture | 0.03% |
| Aluminum (Al) | 0.063% |
| Calcium (Ca) | 0.009% |
| Carbon (C) | 0.017% |
| Chromium (Metallic) | 0.004% |
| Chromium (Hexavalent, Cr⁶⁺) | <0.0001% |
| Iron (Fe) | 0.051% |
| Magnesium (Mg) | 0.001% |
| Phosphorus (P) | <0.001% |
| Silicon (Si) | 0.011% |
| Sodium (Na) | 0.008% |
| Sulfur (S) | 0.008% |
| Vanadium (V) | 0.008% |
Applications and Benefits:
- Advanced green pigment in paints, inks, and ceramics
- Ceramic glaze producing diverse green and black hues
- Catalyst and analytical reagent
- Smelting metal chromium and chromium carbide
- Polishing pastes and special inks
- Building material stains and artificial leather coloring
Caution:
Handle with care. Avoid inhalation or ingestion. Refer to the SDS for detailed safety guidelines.
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