Span-40, Sorbitan Monopalmitate, Emulsifier S40

Property:

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

CAS No.:

26266-57-9

Molecular Formula:

C22H42O6

Molecular Weight:

402.57

Structure Formula:

span-40 structure formula

Specifications:

Item Index
Appearance Yellowish-brown wax
Acid value 8mgKOH/g Max.
Saponification value 140-150mgKOH/g
Hydroxyl value 255-290mgKOH/g
Water 2.0% Max.
Melting point  45±3°C

Uses:

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

Synonyms:

Emulsifier S40, Sorbitan Monopalmitate.

Note:

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