Tween-80 (Polysorbate 80)
Tween-80 (polysorbate 80, CAS 9005-65-6) is a nonionic surfactant that functions as an oil-in-water (O/W) emulsifier and solubilizer. It conforms to HG/T 3510 as an amber viscous grease with hydroxyl value 65-82 mgKOH/g, saponification number 43-55 mgKOH/g, acid value <=2 mgKOH/g and water content <=2%, and is used in cosmetic, pharmaceutical and food systems.
Tween-80