Rosin, also called colophony or Greek pitch, is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.
Gum Rosin product is used for the manufacturing of paper, paint, soap and printing ink. Since rosin is easily softened and oxidized, in the oil paint industry
Features:-PROPERTIES | TYPICALÂ |
Appearance | Bright Pale Color Glossy Fragmented Lumps |
CAS NO | 07-09-8050 |
Clarity | Clear & free of foreign particles and contamination |
Color | Pale Yellow |
Softening Point | 70-75 oC |
Acid Number | 165-170 |
Melting Point (oC, Interval) | 70oC-80oC (WW grade 76oC) |
Boiling Point (100mm Hg) | 318oC |
Flash point (oC) | Above 204oC |
Odor | Rosin odor / Odorless when cold |
Molecular Formula | C20H30O2 |
Miolecular weight | 302 g/mol |
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