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Sorbitan monostearate is an ester of sorbitan (a sorbitol derivative) and stearic acid and is sometimes referred to as a synthetic wax. It is primarily used as an emulsifier to keep water and oils mixed.Sorbitan monostearate is used in the manufacture of food and healthcare products and is a non-ionic surfactant with emulsifying, dispersing, and wetting properties.t is also employed to create synthetic fibers, metal machining fluid, and brighteners in the leather industry, and as an emulsifier in coatings, pesticides, and various applications in the plastics, food and cosmetics industries.
Sorbitan esters are industriallyproduced by a one-step or two-step process [13, 26â28].Here sorbitol is dehydrated to sorbitan which is then esteri-fied with a fatty acid; commonly used fatty acids includelauric acid (Span 20), palmitic acid (Span 40), stearic acid(Span 60) or oleic acid (Span 80).orbitan esters are industriallyproduced by a one-step or two-step process [13, 26â28].Here sorbitol is dehydrated to sorbitan which is then esteri-fied with a fatty acid; commonly used fatty acids includelauric acid (Span 20), palmitic acid (Span 40), stearic acid(Span 60) or oleic acid (Span 80).