Polyethylene Glycol

[William R. Penrose]

In article <621ibd$t...@bgtnsc02.worldnet.att.net> NEWA...@worldnet.att.net (Ora Royce) writes:

>What is polyethylene Glycol. PEG. Apparently it is in a lot of
>products, sometimes followed by the name of an oil or fat. Like
>soybean, stearate or lanolin.

Sure. It's a polymer of ethylene oxide. It is a long chain
of two carbon atoms then one oxygen atom, two carbon atoms, etc.

HO-CH2CH2-0-CH2CH2-O-CH2CH2-O- etc.

The length of the chain determines its properties. PEG is useful for a lot of
things, especially in cosmetics, because it is almost completely nontoxic, in
spite of being made from a poison gas, and because it is cheap. Its
properties can be tailored to fit the application.

Bill

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