| ≥1 piece |
pine gum rosin ww/rosin resin
1) Product Name:pine gum rosin ww/rosin resin
2) Appearance: Transparent
3) Introduction: Gum 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 terpenecomponents. 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.
Grade | X | WW | WG | N | M | K |
Appearance | Transparent Solid | |||||
Color | slightly | pale | yellow | deep | yellow | yellow |
Correspond to the Standard Glass Color Piece of Rosin | ||||||
Softening Point | 76 | 75 | 74 | |||
Acid Value, | 166 | 165 | 164 | |||
Alcohol insoluble | 0.03 | 0.03 | 0.04 | |||
Unsaponifiable | 5 | 5 | 6 | |||
Ash, (%) ,max | 0.02 | 0.03 | 0.04 | |||
Packaging Description | Sealed export grade drum & double of sealed plastic bag |
Storage | In a cool dry place and keep away from strong light and heat |
Shelf life | 2 years when properly stored |
1. Applications:
At present, most 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, the carboxylation reaction of resin acid is usually employed to produce resinate for further use. While in the producing of synthetic rubber and printing ink, resin acid is changed into disproportionate rosin, polymerized rosin, hydrogenated rosin, etc for further use by its double bond reaction.