Gum Rosin, Ww Grade
|FOB Unit Price:||US $1,980 US $1,850|
|Purchase Qty. (Tons)||FOB Unit Price|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal, Money Gram|
- Model NO.: X WW
- Grade: Special Grade
- Packaging: Drum
- Color: Light Yellow
- Trademark: HY
- Origin: Made in China
- Type: Resin Rosin
- Usage: Industrial, Coating Auxiliary, Food Processing, Paper Making, Instrument, Lighting, Chinese Medicine, Water Treatment Chemicals, Textile Auxiliary
- Processing Method: Drip Method
- Quality: AA
- Specification: CE SGS
Gum rosin is made of natural resin, its general formula is C20H30O2.
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, 225kgs net each drum
In kraft paper bag without liner, 25kgs net each bag
In polypropylene woven bag, 25kgs net each bag
Net weight 225kg galvanized steel drum packaging.
Storage and transportation:
This product storage in cool, dry, preventing light.
Standard : GB 8145-87
SOFTENING POINT ( R&B ) °C
7 7 .0
7 5 .0
ACID NUMBER ( mg KOH / g ) ≥
16 4 .0
UNSAPONIFIABLE MATTER % ≤
ETHA N OL INSOLUBLES % ≤
ASH CONTENT % ≤