1. pines unique flavor. 2. Alias ??loose cream, fat pine, pine gum. 3. After distilling turpentine refers to a substance. Solid, transparent, insoluble in water, soluble in alcohol, hard and brittle, yellow or brown. Is the manufacture of paints paper ﹑ ﹑ ﹑ soap and matches the industrial raw materials. 4. pine rosin is inside the trunk out of the oil at high temperature melt into water-like, into a dry bulk solids (no fixed melting point), its dark red brown color, is an important chemical raw materials, mainly used in the daily lives of the circuit board for welding flux, in musical terms rosin is applied on the erhu, violin, strings and other dances and bow hair bow 毛对琴 string used to increase friction. English name: Colophony Latin name: Colophonium Quality Index name one two three four five premium appearance brittle transparent solid color yellow light yellow yellow deep yellow-brown color red in line with rosin-grade glass standard color requirements softening Point (R & B) / ℃ ≥ 76 76 75 75 74 74 Acid value / (mgKOH / g) ≥166 166 165 165 164 164 unsaponifiable content /% ≤ 5 5 5 6 7 7 ethanol insolubles /%≤0.03 0.03 0.03 0.03 0.04 0.04 Ash /%≤0.02 0.02 0.03 0.03 0.04 0.04 CAS: 8050-09-7 due to frequent changes in product prices and a big margin, the exact price please call or instant online advice. Rosin is an important chemical raw material, widely used in various industrial sectors, the main use is as follows: 1, soap and soda ash or caustic industrial rosin cooking together form a rosin soap. Rosin soap has great detergency, soluble in water, can dissolve fat, easy to play bubble. Rosin sticky, easy to crack and make soap rancidity deterioration. 2, the paper industry in the paper industry as rosin sizing papermaking. Rosin and rosin sodium soap made of caustic soda, i.e., rubber, plastic material mixed with the pulp and adding alum, rosin becomes stuck in a small water-insoluble fiber free resin acid particles, when the pulp is heated in the drying cylinder rolling when filling in between the fibers soften rosin, this effect is called "glue" or "glue." After the paper "glue" to enhance water resistance, to prevent ink penetration, improve the strength and smoothness, reduce the degree of stretching. 3, paint industry Rosin soluble in various organic solvents, and easy film, glossy, is one of the basic raw material of paint. The role of rosin in the paint so that the paint color is bright, fast drying, easy to fall off the film is smooth. 4, the ink in the printing ink industry Rosin is mainly used as chromophores, and enhance the adhesion of ink to the paper. If you do not have rosin ink, printing ink will become dull tone, blurred. 5, the adhesives industry rosin ester and hydrogenated rosin ester as a binder of the basic raw material, is often used as hot melt adhesives, pressure sensitive adhesives and rubber tackifier. 6, rubber industry rosin used as softeners in the rubber industry, increase its flexibility. Disproportionated rosin potassium soap can be used for 7, building materials industry Rosin is mainly used in the building materials industry to make concrete foaming agent and a floor tile adhesive. Rosin is also used vinyl asbestos tile adhesive. Rosin and linseed oil, calcium carbonate, charcoal, pigments, etc. can be mixed together to manufacture carpet tiles.