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Gum Rosin

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Gum Rosin

Rosin is a kind of natural resin, mainly composed of various resin acids, soluble in a variety of solvents, with unique chemical activity. It is an important raw material for papermaking, coating, ink, rubber, soap, electronics, edible ester gum, rosin ester resin and other industries.
Gum Rosin
 Grade
XWWWGNMK
 AppearanceTransparent
 Color   Correspond to the Standard                     Piece  of Rosinslightly yellowpale yellowyellow
deep yellowyellow brownyellow red
 Softening Point(R&B),℃    mim
767574
 Acid Valuea,mg/g          min   166165164
 Unsaponifiable Matterb, %  max556
 Alcohol Insoluble Substance, % max0.030.030.04
 Ash, %                     max   0.020.030.04
 








 a.Pinus latteri Mason contains partial di-resin acid, so its acid value is higher.

 b.Pinus elliottii Engelm. contains more di-terpene neutral substance, so the content of unsaponifiable matter is     higher.

Note:

1.Special properties and uses: It is a kind of natural resin, mainly composed of various kinds of resin acids, it can    be dissolved easily in many types of solvents, and has special chemical activity. So it is an important raw material  for the manufacture of paper, coatings, inks, rubbers, soaps, electronic industrial products, food grade ester gum,rosin ester resins, etc.

2.Packing:  Drum: Net weight 225Kgs each drum.

3.The standards of GB8145-2003 is national standard of People's Republic of China. If there are changes, the latest standard will be executed and assured by contract.