离岸价格
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Minimum Order
位置:
China
最小订单价格:
-
最小订单:
18 Metric Ton
包装细节:
225kg/drum
交货时间:
within 15 days after receiving the advance payment
供应能力:
30000 Metric Ton per Year
付款方式:
T/T, L/C
联系人 Ms. Wang
No. 38, industrial park, Guangzong Country,, Xingtai, Hebei
Gum rosin ww grade is made of natural resin, its generalformulais C*0H*0O*0.
Gum rosin is made of natural resin, its general formula is C*0H*0O2.
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.
Gum rosin is an important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper etc.
Gum rosin of our packing details:
In galvanized iron drum, **5kgs net each drum
In kraft paper bag without liner, *5kgs net each bag
In polypropylene woven bag, *5kgs net each bag
|
Parameter |
Grade |
||
|
Standard: GB/T*************3 |
X |
WW |
WG |
|
APPEARANCE |
Transparent |
Transparent |
Transparent |
|
COLOR |
Light Yellow |
Pale Yellow |
Yellow |
|
SOFTENING POINT(R&B)°C |
*6.0 |
*6.0 |
*5.0 |
|
ACID NUMBER(mg KOH / g)≥ |
**6.0 |
**6.0 |
**5.0 |
|
UNSAPONIFIABLE MATTER % ≤ |
5.0 |
5.0 |
5.0 |
|
ETHANOL INSOLUBLES % ≤ |
0.**0 |
0.**0 |
0.**0 |
|
ASH CONTENT % ≤ |
0.**0 |
0.**0 |
0.**0 |
