IRO Surfactant » Products » Nonionic Surfactant » Span Series » Sorbitan Monopalmitate, Span-40

Sorbitan Monopalmitate, Span-40

CAS No.:

26266-57-9

Molecular Formula:

C22H42O6

Molecular Weight:

402.57

Structure Formula:

Properties:

Sorbitan Monopalmitate (Span-40) is yellowish-brown wax. It is slightly soluble in isopropanol, xylene, and liquid paraffin, insoluble in water, and non-toxic. Odorless. Span-40 HLB is 6.7.

Specifications:

ItemIndex
AppearanceYellowish brown wax
Acid value8mgKOH/g Max.
Saponification value140-150mgKOH/g
Hydroxyl value255-290mgKOH/g
Water2.0% Max.
Melting point45±3℃

Uses:

Sorbitan Monopalmitate (Span-40) is used as a dispersant of printing inks and oils, a stabilizer for emulsifying, and an emulsifier for the oil fields.

Packing and Storage:

In 200kg iron drum/plastic drum.

Handle with care. Span-40 should be stored in a cool, dry, and draughty place. Shelf life is 2 years. Then, Span-40 can still be used if qualified after re-check.

Synonyms:

Emulsifier-S40; Sorbitan Palmitate.