Sorbitan Mono Palmitate
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial palmitic acid. SMP is a nonionic, mid-range HLB surfactant suggested for use as a w/o or an o/w emulsifier. It is slightly soluble in isopropanol, xylene and liquid paraffin, insoluble in water, and non-toxic.
CAS No.: 26266-57-9
Synonyms: SMP, Span 40, Sorbitan Monopalmitate, emulsifier S40
Molecular Formula: C22H42O6
Structural Formula:
- Acts as a excellent O/W emulsifier for creams, lotions and pharmaceutical ointments.
- It is a nonionic surfactant functioning as a stabilizing agent and co-emulsifiers in personal care formulations.
- It is also used for ethoxilation.
- It is used as dispersant of printing inks and oils.
Appearance: Waxy Flakes
Odour: Neutral
Color: 8 Max
Acid Value:8.0 max
Saponification Value:140-155 mgKOH/g
Melting point: 45±3℃
