Sorbitan Oleate

Functions
Emulsifier
Co-emulsifier
Surfactant
CAS Number(s)
1338-43-8
EINECS number(s)
215-665-4
FDA UNII
06XEA2VD56

Sorbitan Oleate (sorbitan monooleate; SMO) is a partial oleic acid ester with sorbitol and its mono- and dianhydrides derived from naturally renewable resources. It is a gold-colored viscous liquid derived from a vegetable-based oleic acid source and specially processed to optimize its emulsification properties.

Sorbitan Oleate is a powerful and cost-effective oil-in-water emulsifier (lipophilic surfactant) with a low HLB of 4.3. For oil-in-water (o/w) emulsions, sorbitan esters are used frequently in combination with their ethoxylated sorbitan ester (polysorbate) counterparts.

Thanks to its liquid form, Sorbitan Oleate is perfect for use in dispersible bath oils when combined with Polysorbate 80 (HLB 15) and is soluble in most hydrocarbons and seed oils.  It can be used as a co-emulsifier in lotions and other emulsion-based formulations, providing a wide emulsification range.

Sorbitan Oleate works well in combination with botanical, mineral oils, and silicone emulsions. Sorbitan Oleate is known for its low toxicity and lack of skin irritation characteristics. It is used as an emulsifier and stabilizer for oil-based lotion, creams, ointments, and solid personal care formulations.
Synonyms
Cropol S-4M
Sorbitan Monooleate
Sorbitan Oleate
Lumisorb™ SMO K

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