Gum rosin - X WW WG Specificaton & Trade Terms
| Model | X WW WG |
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| Place Of Origin | china |
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| Packaging | in galvanized iron drum of 225KGS net each,each 20' container can be loaded 80 drums-96 drums |
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| Price Term | EX-Work |
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| Payment Term | TT in advance or L/C at sight |
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| Minimum Order | 18tons |
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| Delivery Time | within 7-10 days after contract |
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Product Description
Gum Rosin
- Liquid & Solid
- Type WW Garade
- Acid Index (MG KOH / G):170-180
- Ash:0.02% max
Product Feature
Gum rosin also called colophony, 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.
Product Specification/Models
Parameter Grade
Standard: GB/T8***3 X WW WG
APPEARANCE Transparent Transparent Transparent
COLOR Light Yellow Pale Yellow Yellow
SOFTENING POINT(R&B)°C 76.0 76.0 75.0
ACID NUMBER(mg KOH / g)≥ 166.0 166.0 165.0
UNSAPONIFIABLE MATTER % ≤ 5.0 5.0 5.0
ETHANOL INSOLUBLES % ≤ 0.030 0.030 0.030
ASH CONTENT % ≤ 0.020 0.020 0.030
Application
Gum rosin is an important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper etc
