Gum Rosin

Gum rosin is made of natural resin, its general formula is C20H30020.

 

Gum rosin also called colophony, 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. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.

 

Gum rosin is an important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper etc.

 

Gum rosin of our packing details:

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

 

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	165.0
UNSAPONIFIABLE MATTER % ≤	5.0	5.0	5.0
ETHANOL INSOLUBLES % ≤	0.030	0.030	0.030
ASH CONTENT % ≤	0.020	0.020	0.030

Resource:

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