Rosin CAS NO.8050-09-7

Colophony (Gum Rosin) Specification: Softening point: 76C min Unsaponifiables: 5% max Acid value: 166 mgkoh/g min Ethyl alcohol insolubili…

Colophony (Gum Rosin) Specification: Softening point: 76C min Unsaponifiables: 5% max Acid value: 166 mgkoh/g min Ethyl alcohol insolubility: 0.03% max Ashes: 0.02% max Appearance: Light yellow transparent solid Packing: 225kg iron drum, 21.6mt / 20'FCL Uses: Raw material for making soap, paper, paint and rubber; Intermediate for synthetic organic chemicals CAS No. 8050-09-7 Molecular formula: C20H30O2 Molecular weight: 302.44 Storing and Transporting: Gum rosin must be kept away from heat and flame. Type B-90 B-100 B-115 B-140 Softening Point (R&B,°C) 90-100 95-105 110-120 135-145 Color of glass Max 4th class Max 4th class Max 4th class Max 4th class Color (Gardner Standard) Max 10 Max 10 Max 10 Max 10 Acid value (mg/g) Max 165 Max 160 Min 145 Min 140 Density (Delivery form, 20°C, abt.,g/cm3) 1.08-1.1 1.08-1.1 1.08-1.1 1.08-1.1