CAS No.: 9005-65-6 Molecular Formula: C64H124O26 Property: Tween-80 is light yellow to amber oily viscose liquid, non-toxic. It is easily soluble in water, soluble in ethanol, vegetable oil, ethyl acetate, methanol, and insoluble in mineral oil. HLB value: 15.0. Usage: Tween-80 is used as emulsifier, wetting agent, penetrating agent, diffusant etc. Packing and Storage: In 200KGs iron drum/plastic drum. Handle with care; Tween-80 should be stored in cool, dry and draughty place. Shelf life is 2years. Then, Tween-80 can still be used if qualified after re-check. In 200kgs iron drum/plastic drum.