gum rosin(Colophony)WW

Colophony is made of natural resin, its generalformulais C20H30020. Because of its special properties, it can be used in paint,
Colophony is a kind of natural resin, that composed of various kinds resin acids, and having special physical and chemical properties.

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
164.0
UNSAPONIFIABLE MATTER % ≤
5.0
5.0
5.0
ETHANOL INSOLUBLES % ≤
0.030
0.030
0.030
ASH CONTENT % ≤
0.020
0.020
0.030
welcome to inquired.
Ann