Rosin is a kind of oil tree rosin in the pine family, the main component is C19H29COOH. Divided into "fat rosin", "wood rosin" and "floating rosin" 3 kinds. It should be used in industry, flux, paper making, string Musical Instruments, etc.
Gum rosin.
Parameter grade Standard: GB/T8145-8146-2003 X WW WG Appearance transparent transparent transparent Color light yellow pale yellow yellow Softening point (R&B) C 76.0 76.0 75.0 Acid number (MG KOH / G) 166.0 166.0 165.0 Unsaponifiable matter % 5.0 5.0 5.0 Ethanol insolubles % 0.030 0.030 0.030 Ash content % 0.020 0.020 0.030. In galvanized iron drum, 225kgs net each drum In kraft paper bag without liner, 25kgs net each bag In polypropylene woven bag, 25kgs net each bag.
Parameter: grade Standard: WW Appearance: transparent Color: pale yellow Softening point (R&B)cd: 76.0 Acid number(mg koh / g: 166.0 Unsaponifiable matter % : 5.0 Ethabol insolubles % : 0.030 Ash content % : 0.020. 225kgs/drum or 25kgs/bag.
Gum rosin is an import chemica and it mainly used in soap industry, paper industry, paint and coatings industry, ink industry, adhesives, rubber industry, food industrial, electric industry and so on.
Gum rosin Our production capacity of Light color modified rosin resin up to 18000 tons per year.
Gum rosin ww grade. Softening point ring and bold min 78deg.C Impurity = max 0.05% Acid value = 160 - 190, Saponification value = 170 - 220 Iodine = 5 - 25 Ash content = +/- 0.04% Volatile oil content = +/- 2% Ash content = +/- 0.04% Zinc drum @ 240 kgs. 1 fcl 20' content 80 drums = 19.2 mton nett.
Quality Specifications X WW WG N M K Color Slightly Yellow PaleYellow Yellow DeepYellow Yellow Brown YellowRed Correspond to the standard glass color piece of rosin Appearance Transparent Solid Softening point, (¡æ)(by ball and ring method),min. 76 75 74 Acid No. (mgkoh/g), min. 166 165 164 Unsaponifiable material (%), max. 5 5 5 Alcohol Insoluble material (%), max. 0.03 0.03 0.04 Ash (%) max. 0.02 0.03 0.04 225 KG net, 231 KG gross packed in new galvanized iron drums
Gum rosin Specs:natural bright yellow color Ww garade Acid index(mg koh/g) : 170 180 Ash content: 0.02% max Liquefied degree: 70%c. Min Undissolved moisture Soap index: 156 Goods is covered in zinc tanks Net weight: 230 kg/ tank. 80 100 tanks per container.Under shipping marks : gum rosin of viet nam.
Gum rosin Item spec result Color light yellow confirms Aspect transparent solid confirms Soft point c min 76 80 Acid value mgkoh/g max 166 149 Unsaponification value% max 5 3.5 Insolution matters in ethanol% max 0.03 0.02 Ash % max 0.02 0.015
