Quick Detail
Place of Origin
HS-CODE
34-
Package & Delivery Lead Time
Detailed Description
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.
Uses of Gum Rosin: At present, most rosin product is used for the
manufacturing of paper, paint, soap and printing ink. Since rosin is
easily softened and oxidized, in the oil paint industry, the carboxylation
reaction of resin acid is usually employed to produce resonates for
further use.While in the producing of synthetic rubber and printing ink,
resin acid is changed into disproportionate rosin, polymerized rosin,
hydrogenated rosin, etc for further use by its double bond reaction.
Specifications for ww grade:
Item Results Standard GB/T8145-8146-2003 Appearance Transparent Color Pale Yellow Softening Point(R&B)°C 76.0 Acid Number
(mg KOH / g)≥ 166.0 Unsapoinifiable Matter% ≤ 5.0 Ethanol Insolubles
% ≤ 0.030 Ash content
% ≤ 0.020 Packing:225kg/Galvanized Iron Drum Or In kraft paper bag without liner, 25kgs net each bag
Storing and Transporting: Gum rosin must be kept away from heat and flame.
Any interests in our products,please feel free to contact me asap for further detailed product information. Xi'an Derfer Chemical Co., Ltd.
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