Span series

Span series Structure formula: Product\item appearance(25f¦) acid value (mgkoh/g) hydroxy value(mgkoh/g) saponification(mgkoh/g) S-20 primrose yellow to yellow viscous liquid f_8.0 330-360 160-175 S-40 yellow waxy substance f_10.0 255-290 140-160 S-60 yellow flake or waxy substance f_10.0 240-270 145-160 S-80 yellow brown transparent viscous substance f_10.0 190-220 140-160 Performance and application: S-20 has little solubility in mineral oil, isopropanol, tetrachloroethylene and xylene, difficult to solve in water, and is milky solution after dispersion. It is used as w/o emulsifier in medicine, cosmetics and textiles industries. S-40 is used as dispersants of printing ink and oil-emulsifying, emulsifiers of emulsion polymerization, effective additives of water-resistant textile, emulsifier and finishing agent near well in oil field. S-60 is used as constituents of synthetic fiber finish oil, soften agents of fiber post processing, and emulsifiers in plastic and pesticide industry. S-80 is used as finish oil of cord of nylon and building of finish oil for polyacrylonitrile fiber, and also used in such industries as oil drilling, printing ink, cosmetics, high-grade scouring agent, metal cutting, and machining, in addition, as emulsified explosion and food additives. Packing: 200kg iron drum or plastic barrel or 25kg plastic bags Storage and transpotation: storage and transportation of the non-toxic and non-danger, store in a cool, dry and airing place for one year