Polyethylene glycol is a polyether compound derived from petroleum with many applications, from industrial manufacturing to medicine. PEG is also known as polyethylene oxide or polyoxyethylene, depend
Polyethylene glycol 400
The remains of the 16th century carrack Mary Rose undergoing conservation treatment with PEG in the 1980s
Terra cotta warrior, showing traces of original color
Polyethylene oxide (PEO, Mw 4 kDa) nanometric crystallites (4 nm)
Propylene glycol is a viscous, colorless liquid. It is almost odorless and has a faintly sweet taste. Its chemical formula is CH3CHCH2OH. As it contains two alcohol groups, it is classified as a diol.
Polyethylene glycol
…PEG is used to extend the size and durability of very large soap bubbles. PEG is an ingredient in some personal lubricants. (Not to be confused with propylene glycol.) PEG is the main ingredient in the paint (known as "fill") in paintballs…
Propylene glycol is commonly used to de-ice aircraft.
Propylene glycol is often used in electronic cigarettes.