Sorbitan Monooleate (Span 80) is produced by esterification of sorbitan with food-grade oleic acid.
With HLB 4.3, it is a lipophilic W/O emulsifier used for stabilising water-in-oil systems, fat-soluble vitamin formulations, and as a co-emulsifier with Polysorbate 80. Widely applied in margarine, ice cream, pharmaceutical creams and cosmetics.