Propylene glycol
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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.
Propylene glycol is commonly used to de-ice aircraft.
Propylene glycol is often used in electronic cigarettes.
Glycerol
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Glycerol is a sugar alcohol with chemical formula C3H53. It has three carbon atoms with one hydroxyl group on each. Glycerol is a colorless, odorless, sweet-tasting, viscous liquid at Standard Ambient
Propylene glycol
…Pharmacopoeia) propylene glycol can reduce the risk of Abbreviated New Drug Application (ANDA) rejection. Propylene glycol can also be obtained from glycerol, a byproduct from the production of biodiesel. This starting material is usually reserved for industrial use because of the noticeable odor and taste…
Sample of glycerine
A bottle of glycerin purchased at a pharmacy
Personal lubricants commonly contain glycerol
Glycerol is an ingredient in products such as hair gel