Span 20, Span 80

CAS No.: 1338-43-8, 1338-39-2
Type.: Emulsifier
Appearance: Light yellow liquid
Molecular Formula： NH2SO3H
Shelf Life： -
Min Order Quantity: 500kg

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Specification

Properties	Standard value	Test value
Product Name	Span 20
Appearance	Light yellow to amber viscous liquid or paste	Apposite
Fatty acid, (w/%)	56~68	61.2
Polyols, (w/%)	36~49	41.5
Acid Value, (mg KOH/g)	≤7.0	5.2
Saponification Value, (mg KOH/g)	155~170	166.8
Hydroxyl Value, (mg KOH/g)	330~360	351.2
Moisture, (w/%)	≤1.5	0.3
Residue on Ignition, (w/%)	≤0.50	0.4
Lead, (mg KOH/g)	≤2	＜2
Arsenic, (mg KOH/g)	≤3	＜3
Test results	Pass

Properties	Standard value	Test value
Product Name	Span 80
Appearance	Yellow to orange oily liquid	Apposite
Colour Lovibond （R/Y）	≤3R 20Y	1.4R 10.5Y
Acid Value, (mg KOH/g)	≤8.0	3.5
Saponification Value, (mg KOH/g)	140~160	149.3
Hydroxyl Value, (mg KOH/g)	190~220	199.4
Moisture, (w/%)	≤1.5	0.2
Test results	Pass

Application
(1) This product is used as emulsifier, stabilizer, thickener and wetting agent in medicine, cosmetics and textile industry.

(2) Span 20, Span 80 can also be used as dispersant in paint industry and emulsifier in oil field. It is used as a gas chromatographic fixative and also as an emulsifier.

(3) It is used as a W/O type food emulsifier.

(4) Span 20, Span 80 can be used alone or in combination with Tween-60, Tween-80 and Tween-65.

(5) China's regulations can be used for vegetable protein beverages, milk, hydrogenated vegetable oil, bread, cakes and toffee, the maximum use is 1.5g / kg; the maximum use of juice (flavor) type of beverage is 0.05g / kg.

(6) In addition, Span 20, Span 80 can also be used for the preservation of vegetables and fruits (coating film), and it can be used in an appropriate amount according to production needs.