Product Specifications
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Type: |
Resin Rosin |
Product Description
Gum rosin ww grade
Name: Gum rosin, colophony, rosin
CAS No.: 8050-09-7
Mf: C19h29cooh
Grade: W grade, ww grade etc
Properties:
1. A kind of natural resin, amixture with various organic acid, and with special chemical activity.
2. Gum rosin also called colophony or Greek pitch 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. Rosin is brittle at room temperature, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.
Specification:
Grade x ww wg
Color light yellowpale 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 0.040
Ash content % ≤ 0.020 0.020 0.030
Application: It is used in paper, ink, rubber, paints and varnish, various adhesives, glue, soap, synthetic resins, chewing gum and other chemical industries.
With high quality and most competitive price, we have enjoyed many friendly customers worldwide and owned widely trading field.
Should you are interested in our products, or have other products you would like to import, pls contact me freely with your requirements.
We look forward to providing you with high quality products, superior customer service and complete satisfaction.
