Polyoxyethylene sorbitan monooleate CAS 9005-65-6, polysorbate-80 or TWEEN 80 for short, is an organic compound with a chemical formula of C24H44O6(C2H4O)n. It is easily soluble in water, soluble in ethanol, vegetable oil, ethyl acetate, methanol, toluene, and insoluble in mineral oil. It becomes gelatinous at low temperature and recovers after heating. It has a special smell and slightly bitter taste. Often used as a surfactant. 

General Description of Tween 80 (Polysorbate 80)

Polysorbate 80 is oluble in water, soluble in ethanol, vegetable oil, toluene, ethyl acetate, methanol, insoluble in mineral oil. Low temperature gelatinize, after heat recovery. Have a special foul-smelling and slightly bitter taste. Dispersion of phthalocyanine green have help.

Mainly used as emulsifier, wetting agent, penetrating agent, dispersant, etc, also used as a component of polyamide fiber and viscose for tyre oilare a class of emulsifiers used in cosmetics 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. 

Polysorbate 20 (polyoxyethylene (20) sorbitan monolaurate)           CAS 9005-64-5

Polysorbate 40 (polyoxyethylene (20) sorbitan monopalmitate)       CAS  9005-66-7

Polysorbate 60 (polyoxyethylene (20) sorbitan monostearate)         CAS 9005-67-8

( 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. Monolaurateis indicated by 20, monopalmitate is indicated by 40, monostearate by 60, and monooleate by 80.)

Polysorbate 80 (Tween) Specification 

Spec                                                  T-20              T-40          T-60           T-80         

Appearance, 25°C              Light yellow oily liquid/Light yellow to amber viscous liquid

Hydroxyl value, mgKOH/g                 90-110          85-100       80-105       65-80      

Specification value, mgKOH/g            40-50            40-55         40-60        43-55     

Acid value, mgKOH/g                           2                    2                2               2          

HLB Value                                          16.7              15.7            14.9          15.0      

Where to use Polysorbate 80/Tween 80

Used as emulsifier, foaming agent, lubricant, solubilizing agent, antistatic agent, washing agent, penetrating agent, dispersing agent, degreasing agent and chemical intermediate in the industry.

Package mode

200kg/plastic or iron drum, 16mt per 20'FCL