*** Welcome to piglix ***

Polysorbate 20

Polysorbate 20
Polysorbate 20
Names
IUPAC name
Polyoxyethylene (20) sorbitan monolaurate
Other names
Polysorbate 20
PEG(20)sorbitan monolaurate
Alkest TW 20
Tween 20
Identifiers
9005-64-5 YesY
ECHA InfoCard 100.105.528
E number E432 (thickeners, ...)
RTECS number TR7400000
Properties
C58H114O26
Molar mass 1227.54 g/mol
Appearance Clear, yellow to yellow-green viscous liquid.
Density 1.1 g/mL (approximate)
Boiling point > 100 °C (212 °F; 373 K)
Surface tension:
8.04×10−5 M at 21 °C
16.7
Hazards
Main hazards Irritant
Safety data sheet External MSDS
NFPA 704
Flammability (red): no hazard code Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity (yellow): no hazard code Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point 110 °C (230 °F; 383 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Polysorbate 20 (common commercial brand names include Scattics, Alkest TW 20 and Tween 20) is a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid. Its stability and relative nontoxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. As the name implies the ethoxylation process leaves the molecule with 20 repeat units of polyethylene glycol; in practice these are distributed across 4 different chains leading to a commercial product containing a range of chemical species. Tween and Tween 20 are registered trademarks of Croda Americas,

Polysorbate 20 is used as a wetting agent in flavored mouth drops such as Ice Drops, helping to provide a spreading feeling to other ingredients like SD alcohol and mint flavor.

The World Health Organization has suggested acceptable daily intake limits of 0–25 mg of polyoxyethylene sorbitan esters per kg body weight.

In biological techniques and sciences, polysorbate 20 has a broad range of applications. For example, it is used:

Polysorbate 20 is used as an excipient in pharmaceutical applications to stabilize emulsions and suspensions.

Polysorbate 20 is used by philatelists to remove stamps from envelopes and to remove residues from stamps, without harming the stamp itself.

Polysorbate 20 is also used as wetting agent in rubber balers in the elastomer industry.

Polysorbate 20 has been used as a shape directing agent to synthesize spheroidal magnetite nanoassemblies.


...
Wikipedia

...