Pine Gum Rosin/Natural Colophony/WW/WG grade Grade Resin

FOB Price 750 - 1500 USD / Metric Ton

MOQ	24 Metric Ton
Port	DURBAN PORT
Packaging	Drum: Galvanized iron drum, 225kg net each drum
Lead Time	7 days after payment confirmation

Product Details

1) Product Name: Best pine gum rosin price/ pine rosin

2) Appearance: pale yellow solid

3) Purity: 99% min

4) Molecolar formula: C20H30O2

5) Density:1.060~1.085g/cm3

6) Melting point:110~135℃

7) Boiling point:300℃(0.67kPa)

8) Water solubility:Insoluble in water, soluble in alcohol

9) Introduction:

Gum Rosin, also called colophony or Greek pitch, 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 terpenecomponents. 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.

1.Specifications

Grade	X	WW	WG	N	M	K
Appearance	Transparent Solid
Color	slightly yellow	pale yellow	yellow	deep yellow	yellow brown	yellow red
	Correspond to the Standard Glass Color Piece of Rosin
Softening Point (R&B),°C, min	76		75		74
Acid Value, (mgKOH/g), min	166		165		164
Alcohol insoluble Substance ,(%) , max	0.03		0.03		0.04
Unsaponifiable matter, (%) ,max	5		5		6
Ash, (%) ,max	0.02		0.03		0.04