Product Description
Gum rosin
Other Names: Colophony
CAS No.:8050-09-7
MF: C20H30O2
Purity: 100%
Packaging: In galvanized iron drum, 225kgs net each drum In Kraft paper bag without liner, 25kgs net each bag In polypropylene woven bag, 25kgs net each bag
Delivery: Within 15 days
Specifications
Colophony is made of natural resin; its general formula is C20H30020. Because of its special properties, it can be used in paint, paper making, adhesive, soap, rubber, chemicals and medicine.
-
Grade(X)
APPEARANCE Transparent
COLOR Light Yellow
SOFTENING POINT(R&B) °C..............76
ACID NUMBER (mg KOH/g)>=............166
UNSAPONIFIABLE MATTER %< =..........5
ETHANOL INSOLUBLES %< =.............0.03
ASH CONTENT %< =...................0.02 -
Grade (WW)
APPEARANCE Transparent
COLOR Pale Yellow
SOFTENING POINT(R&B) °C...........76
ACID NUMBER (mg KOH/g)>=...........166
UNSAPONIFIABLE MATTER %< =......5
ETHANOL INSOLUBLES %< =........0.03
ASH CONTENT %< =.........0.02 -
Grade (WG)
APPEARANCE Transparent
COLOR Yellow
SOFTENING POINT(R&B) °C........75
ACID NUMBER (mg KOH/g)>=........164
UNSAPONIFIABLE MATTER %< =.......5
ETHANOL INSOLUBLES %< =.........0.03
ASH CONTENT %< =..............0.03
