WW grade Gum rosin
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 |
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 |
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.