POLYSORBATE

Polysorbates are a class of emulsifiers used in some pharmaceuticals and food preparation. 
They are often used in cosmetics to solubilize essential oils into water-based products.
Polysorbates are oily liquids derived from ethoxylated sorbitan (a derivative of sorbitol) esterified with fatty acids.

Polysorbates are also commonly used as emulsifiers in the food industry (salad dressing, ice cream) and in cosmetics, pharmaceuticals, detergents, paints, and plastic applications.

EMULSIFIERS | Organic Emulsifiers

Sorbitan Fatty Acid Esters
Polyoxyethylene sorbitan esters are synthesized by the addition, via polymerization, of ethylene oxide to sorbitan fatty acid esters. 
These nonionic hydrophilic emulsifiers are very effective antistaling agents and, thus, are used in a wide variety of bakery products. 
These emulsifiers are much more widely known as the polysorbates, e.g., polysorbate 20, 60, and 80. 
Polysorbate 20, 60, and 80 utilize lauric, stearate, and oleate, respectively, for the fatty acid portion of the molecule.
Polysorbate 60 is a monostearate, whereas polysorbate 65 is a tristearate.

Polysorbate 20 (polyoxyethylene (20) sorbitan monolaurate)
Polysorbate 40 (polyoxyethylene (20) sorbitan monopalmitate)
Polysorbate 60 (polyoxyethylene (20) sorbitan monostearate)
Polysorbate 80 (polyoxyethylene (20) sorbitan monooleate)
The number 20 following the 'polyoxyethylene' part refers to the total number of oxyethylene -(CH2CH2O)- groups found in the molecule. 
The number following the 'polysorbate' part is related to the type of fatty acid associated with the polyoxyethylene sorbitan part of the molecule. 
Monolaurate is indicated by 20, monopalmitate is indicated by 40, monostearate by 60, and monooleate by 80.

See also
Sorbitan monolaurate
Sorbitan monostearate
Sorbitan tristearate

Polysorbate (Tween 20/40/60/65/80)
Product Name: Polysorbate (Tween 20/40/60/65/80)

Appearance:White powder

Payment terms:T/T,L/C

Package:200g/Drum

Delivery time:7 days

Product description: Polysorbates are a class of emulsifiers used in pharmaceuticals ，cosmetic and food preparation. It has more hydrophilic groups in the molecule, so it is highly HLB value.It is often used as an oil-in-water (O/W) type emulsifier.

Product details

        Polysorbates are hydrophilic emulsifying agents, of which polysorbate 20 is more hydrophilic than polysorbate 60 and polysorbate 80, and polysorbate 65 is more lipophilic than the others. It is often used as an oil-in-water (O/W) type emulsifier. It can be combined with other emulsifiers such as sodium lauryl sulfate or a disc. The stability of the emulsion.

(1) Polysorbate 20
English name: Polyoxyethylene (20) Sorbitan monolaurate or Polysorbate 20
Code name: Polyoxyethylene sorbitan monolaurate (Tween 20)
Appearance:light yellow to yellow oily liquid
HLB Value:   16.7
CAS number: 9005-64-5
Chemical formula: C58H114O26

(2) Polysorbate 40
English name: Polyoxyethylene (20) Sorbitan Monopalmitate or Polysorbate 40
Code name: Polyoxyethylene sorbitan monopalmitate (Tween 40)
Appearance:yellow clear oily liquid
 HLB Value:   15.6
CAS number: 9005-66-7
Chemical formula: C62H122O26

(3) Polysorbate 60
English name: Polyoxyethylene (20) Sorbitan Monostearate or Polysorbate 60
Code name: Polyoxyethylene sorbitan monostearate (Tween 60)
Appearance:yellow clear oily liquid or paste
HLB Value:   14.9
CAS number: 9005-67-8
Chemical formula:  C64H126O26 

(4) Polysorbate 65
English name: Polyoxyethylene (20) Sorbitan Tristearate or Polysorbate 65
Code name: Polyoxyethylene sorbitan tristearate (Tween 65)
Appearance:yellow clear oily liquid or paste
HLB Value:   10.5
CAS number: 9005-71-4
Chemical formula:C100H194O26 

(5) Polysorbate 80
English name: Polyoxyethylene (20) Sorbitan Monooleate or Polysorbate 80
Code name: Polyoxyethylene sorbitan monooleate (Tween 80)
Appearance:yellow clear oily liquid
HLB Value:   15
CAS number: 9005-65-6
Chemical formula:  C64H124O26