Rosin for light yellow to yellow red transparent solid, softening point of 70 ~ 90 ℃, specific gravity of 1.070 ~ 1.085, the RongXieRe: 15.8 kcal/kg, heat capacity: 0.54 ℃, kcal/kg, coefficient of thermal conductivity: 0.11 kcal/m · h · ℃, the volume resistivity: 5 x 1016 Ω cm, flash point: 216 ℃. Also has the characteristics of rosin crystallization, easy to produce the crystallization phenomenon, in acetone, etc will have crystallization trend, crystallization critical temperature of about 100 ℃, the crystallization of 110 ~ 135 ℃ rosin melting point, and it is very difficult to be saponification. In addition, also has the spin of rosin light, flux than zero to spin value control between 15 ° (best points + 7 °) which is no crystallization phenomenon and the crystallization of the lowest trend rosin.
Refers to the distillation of the material. Gum Solid, transparent, insoluble in water, being hard and brittle, light yellow or brown. Is paint, soap, paper making, matches, and industrial raw materials.