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What (who) is diol - definition
CHEMICAL COMPOUND CONTAINING TWO HYDROXYL GROUPS
Glycol; Glycols; Dialcohol; Aldehyde hydrate; Diols; Duhydrozy alcohol; Vicinal diol
diol
['d???l]
¦ noun Chemistry an alcohol containing two hydroxyl groups in its molecule.
Glycol
·noun Any one of the large class of diacid alcohols, of which glycol proper is the type.
II. Glycol ·noun A thick, colorless liquid, C2H4(OH)2, of a sweetish taste, produced artificially from certain ethylene compounds. It is a diacid alcohol, intermediate between ordinary ethyl alcohol and glycerin.
glycol
Wikipedia
Diol
A diol is a chemical compound containing two hydroxyl groups (−OH groups). An aliphatic diol is also called a glycol. This pairing of functional groups is pervasive, and many subcategories have been identified.
The most common industrial diol is ethylene glycol. Examples of diols in which the hydroxyl functional groups are more widely separated include 1,4-butanediol HO−(CH2)4−OH and propylene-1,3-diol, or beta propylene glycol, HO−CH2−CH2−CH2−OH.
Examples of use of diol
1. Mail order and stockists (0161–764 2555, www.faithproducts.com) Our verdict Has a tiny amount (0.02%) of the tongue–twisting, petroleum–derived preservative "2–Bromo–2Nitropropane–1–3–Diol". Like it says on the bottle, a small squeeze is good for a bowl of washing–up, dealing with the greasy stuff as well as more delicate items such as glasses.