Gum rosin
It is a kind of natural resin,mainly composed of a variety of resin acids, soluble in a variety of solvents, with unique chemical activity.lt is an important industrial raw materials for Paper, paint, ink, rubber, soap, electronics, food grade ester gum, rosin ester resins, etc.
Specifications:
|
Grade |
X |
WW |
WG |
N |
M |
K |
|
Color |
Slightly yellow |
Pale yellow |
Yellow |
Deep yellow |
Yellow brown |
Yellow red |
|
Correspond to the Standard Piece of Rosin |
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|
Appearnce |
Transparent |
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|
Softening point(R&B)℃ |
≥76 |
≥75 |
≥74 |
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|
Acidvalue,mgkoh/g max |
≥166 |
≥165 |
≥164 |
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|
Unsaponifible matter% |
≤5 |
≤5 |
≤16 |
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|
Alcohol insoluble Subatance% |
≤0.03 |
≤0.03 |
≤0.03 |
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|
Ash% |
≤0.02 |
≤0.03 |
≤0.04 |
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