GUM ROSIN (H.S. CODE: 3806 1000 CAS NO.: 8050-09-7)

Name of Index

X

WW

WG

N

M

K

Color

slight yellow

Light yellow

yellow

Deep yellow

yellow brown

yellow red

Appearance

Transparent

Softening Point
(R. & B.)

76C min

75C min

74C min

Acid Value mg KOH/g

166 min

165 min

164 min

Unsaponifiable Matter

5%max

5% max

5%max

Insoluble Matter in Alcohol

0.03%max

0.03% max

0.04% max

Ash

0.02% max

0.03% max

0.04% max

Special Properties of Gum Rosin: Natural organic compound, mainly composed of resins, possesses chemical activity when dissolved in many organic solvents.

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 resinate 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.

Packing, Storing and Transporting of Gum Rosin: In galvanized Iron drums of about 225/230kgs net each,
must be kept away from heat and flame.