a natural organic compound used as basic raw material for chemical industry,like soap,paper,paint,ink,adhesive

Its modified products or derivatives are mainly used as raw material for the manufacturing of soap, paper, paint, rubber, ink, adhesive, electronic and intermediates for synthetic organic chemicals.

Typical Properties:

Grades	WW
Appearance	Transparent Solid
Color (USDA)	Light Yellow
	Conform to Chinese glass colorimeter standard cubes for rosin grading
Softening Point (R&B) Min.	76
Acid Number (mg KOH/g) Min.	166
Non-saponification content. Max. %	5
Insoluble matter in alcohol Max. %	0.03
Ash content. Max. %	0.02

Packaging:

225 kg (496 lbs) net in galvanized iron drum. Gross weight is approximately 513 lbs.

Methods of Analysis:

GB8145-87

gum rosin ww grade