WW grade Gum rosin

Brief Description
CAS No.: 8050-09-7 Other Names: Chinese Gum Rosin MF: C19H29COOH
EINECS No.: 232-475-7 Place of Origin: Shandong China (Mainland) Type: Synthetic Fibers, Synthetic Resin and Pla...
Brand Name: wlb Model Number: x/ww/wg Purity: 100%
Meltiting Point: 70-72°C  
Delivery Terms & Packaging
Packaging Detail:In galvanized iron drum, 225kgs net each drum In kraft paper bag without liner, 25kgs net each bag In polypropylene woven bag or as your requirements
Delivery Detail:within 20 days after the order confirmed
Specifications
WW grade Gum rosin

1.gum rosin
2.Packaging:225kg/drum
3.Delivery:prompt shipment
4.Grade:ww/x/wg
5.CAS no.:8050-09-7

Specifications:

Parameter
Grade
Standard: GB/T8145-8146-2003
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


USE:
Gum rosin is made of natural resin, its general formula is C20H300200
Gum rosin is made of natural resin, its general formula is C20H30020.
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.