Colophony Light Yellow Gum Rosin M Buy Gum Rosin Colophony
Specifications
It is a kind of natural resin, mainly composed of various kinds of resin acids, it can be dissolved easily in many organic solve- Specifications
Appearance: Transparent Solid
Color: yellow brown
Softening Point (R&B),°C, min: 74
Acid Value, (mgKOH/g), min: 164
Alcohol insoluble Substance ,(%) , max: 0.04
Unsaponifiable matter, (%) ,max: 6
Ash, (%) ,max: 0.04
Correspond to the Standard Glass Color Piece of Rosin
2. Uses of Gum Rosin:
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 resonates 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.
3. Packing:
(1) Drum: Galvanized iron drum, 225kg net each drum.
(2) Bag: Intertexture or kraft paper bag, 25kg net each bag.
4. Technical specification:
The above technical specification (GB 8145-87) is the national standard of People's Republic of China. If there are changes, the latest specification will be executed and assured by contract.
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