吐温 80，又名聚山梨醇酯80，常温下为淡黄色至琥珀色油状液体。略带苦味，溶于水、乙醇、醋酸乙酯及甲苯，不溶于矿物油及植物油。具有乳化、润湿、起泡等性能，属 O/W 型乳化剂，HLB 值 15.0。

T80,Polyoxyethylene (20) Sorbitan Monooleate,Light yellow to amber oily liquid at room temperature.Slightly bitter taste, soluble in water, ethanol, ethyl acetate and toluene.Insoluble in mineral oil and vegetable oil.With emulsification, wetting, foaming and other properties, and belongs to O/W type emulsifier.HLB is 15.0