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Gum rosin is an amorphous, glassy, brittle substance. The color scheme is usually from light yellow to dark red. Gum rosin is a processing product of pine pitch and is a blend of resin acids of total formula C20 H30O2.
Scope of application:
- paint and varnish industry;
- pulp-and-paper industry;
- production of synthetic rubber;
- production of tire and rubber products;
- production of plastics, artificial leather, linoleum and soaps.
Physical and chemical properties:
|
№ |
Properties |
Standard for |
||
|
Top grade |
1st grade |
2nd grade |
||
|
1 |
Appearance |
Transparent, glassy mass or mass with air bubbles |
||
|
2 |
Colour intensity, according to scale for wood chemistry |
XWW, Wg |
XWWWg,N |
M, K,V, H, G |
|
3 |
Water content, wt.%, maximum |
0,2 |
0,2 |
0,2 |
|
4 |
Ash content, wt.%, maximum |
0,03 |
0,04 |
0,04 |
|
5 |
Mechanical impurities, wt.%, maximum |
0,03 |
0,04 |
0,04 |
|
6 |
Softening point, оС, minimum |
69 |
68 |
66 |
|
7 |
Acid number, mg КОН per 1 g of product, minimum |
169 |
168 |
166 |
|
8 |
Tendency to crystallization |
No honey porous deposits |
||
|
9 |
Content of unsaponifiables, wt.%, maximum |
6 |
6,5 |
7,5 |
Packing:
Cardboard drums on 47 and 55 kg.
Metal barrels of 100 kg
Transportation:
Road and railway transport
Guaranteed storage period:
2 year from the date of manufacture.
Storage conditions:
Store in covered warehouses or in an open area under a shed; away from heat and open flame.
