Gum Rosin
Gum Rosin
| Type | X | WW | WG | N | M | K | |
| Appearance | Transparent | ||||||
| Correspond to the Standard Piece of Rosin | |||||||
| Color | slightly yellow | pale yellow | yellow | deep yellow | yellow brown | yellow red | |
| Softening Point(R&B),℃ | min | 76.0 | 75.0 | 74.0 | |||
| Acid Valuea，mgKOH/g | min | 166.0 | 165.0 | 164.0 | |||
| Unsaponifiable matterb, % | max | 5.0 | 5.0 | 6.0 | |||
|
Alcohol insoluble Substance, %
|
max | 0.030 | 0.030 | 0.040 | |||
| Ash, % | max | 0.020 | 0.030 | 0.040 | |||
Note：
1.Special properties and uses: It is a kind of natural resin, mainly composed of various kinds of resin acids, it can be dissolved easily in many types of solvents, and has special chemical activity. So it is an important raw material for the manufacture of paper, coatings, inks, rubbers, soaps, electronic industrial products, food grade ester gum, rosin ester resins, etc.
2.Packing: Drum: Net weight 225Kgs each drum.
3.The standards of GB8145-2003 is national standard of People's Republic of China. If there are changes, the latest standard will be executed and assured by contract.