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
  • Specification
  • Application
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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.
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