Tween series Type: non-ionic Structure formula: Product\item appearance(25f¦) acid value (mgkoh/g) hydroxy value(mgkoh/g) saponification(mgkoh/g) T-20 light yellow to yellow viscous substance f_2.0 90-110 40.0-50.0 T -40 f_2.0 85-100 40.0-55.0 T -60 yellow paste f_2.0 80-105 40.0-55.0 T -80 brown yellow viscous liquid f_2.1 65-82 43.0-55.0 Performance and application: they dissolves in water and such organic solvents as methanol, alcohol, isopropanol, glycol etc., no solubility in mineral oil, being a excellent o/w emulsifier. T-20 is widely used as solubilizer, permeate agent and dispersant in medical, cosmetics and food industry. T-60 is widely used as component of polyacrylonitrile fiber finish oil and soften agent for fiber producing, and emulsifier in coat and plastic industries. T-80 is used as emulsifier, wetting agent and diffusant etc., and as blowing promoter in polyurethane foam industry with particular effectiveness. Packing: 200kg plastic drum or galvanized iron drum Storage and transportation: storage and transportation of the non-toxic and non-danger, store in a cool, dry and airing area for one year