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nature : Rosin also known as cooked or cooked incense. Yes collected from pine resin or extract. For transparent glassy brittle material, exterior color yellow to black, with special smell. 1.09g/cm3 density of ~ 1.01. The temperature of 120 ° C to 135. Softening point 70 to 80 ° C Acid 155 ~ 175. Saponification value of 167 ~ 185. Iodine-220 80. Flash point 187.8 ° C Do not dissolve in water, soluble in alcohol, ether, acetone, benzene, carbon disulfide, turpentine, oil and alkaline solution. Major components of the rosin acid, dehydroabietyl acid, rosin acid, Isopimaric acid, rosin acid varies. Greater activity. Depending on the different collection methods can be divided into plastic Rosin (gum rosin), wood rosin (wood rosin), and tall oil rosin (Tall oil rosin), rosin, as the quality of its color, acidity, softening point, and set transparency. Generally, the more shallow color, the better the quality, rosin acid content, the higher acidity, the higher softening point higher. Pine rosin resin from pine resin collected, after which steamed out of turpentine and prepared. Pine wood rosin root extract can be obtained while. Tall oil rosin may be tall oil and vacuum distillation system or in paper pulp from the cooking liquid recovery. For soap, paper sizing agent, paints, pigments, printing inks, adhesives and rubber emulsifiers such.
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