Products
Twain 85
Chemical Properties
This product is an amber oily viscous liquid with a relative density of 1.00 ~ 1.05, a viscosity of 0.20 ~ 0.40Pa·s (25℃), a flash point of 321℃, and an HLB value of 11.0. It is dissolved in rapeseed oil, lysofibroin, methanol, ethanol and other low carbon alcohols, aromatic solvent, ethyl acetate, most mineral oil, petroleum ether, acetone, dioxane, carbon tetrachloride, ethylene glycol, propylene glycol, etc., dispersed in water.
Use
This product is widely used in oil exploitation and transportation, medicine, cosmetics, paint pigments, textiles, food, pesticides, detergent production and metal surface corrosion inhibitor and cleaning agent production, as emulsifier, softener, finishing agent, viscosity reducer, etc. Use as emulsifier, stabilizer, wetting agent, diffuser, penetrant and so on
[Packing storage] 25kg/ paper bag
Technical index
In line with GB25554-2010 standard item index acid value (KOH)/(mg/g) ≤2.0 saponification value (KOH)/(mg/g) 45-55 hydroxyl value (KOH)/(mg/g) 6chemicalbook5-80 moisture, w/%≤3.0 burning residue, w/%≤0.25 Arsenic (As)/(mg/kg) ≤3 lead (Pb)/(mg/kg) ≤ 2-oxyethylene (C2H4O), w/%65.0 ~ 69.5
Production Method
1mol Span-80 was preheated and put into the reaction kettle, adding catalyzed sodium hydroxide aqueous solution under stirring, stirring, vacuuming and dehydration. After replacing the air in the kettle with nitrogen, 22mol ethylene oxide began to flow when the temperature rose to 140℃, and the reverse Chemicalbook temperature was maintained at 180 ~ 190℃. After the ethylene oxide was passed, the vacuum was stopped. After cooling, the material liquid is driven into the neutralization kettle and neutralized with acetic acid until the acid value is about 2, and then decolorized with an appropriate amount of hydrogen peroxide. Finally, the material is dehydrated until the water content is 3%, and the finished product can be obtained by cooling discharge packaging.
