hydroxyl

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Related to hydroxyl: hydroxyl ion, Functional groups

hy·drox·yl

(hī-drŏk′sĭl)

The univalent group OH, a characteristic component of bases, certain acids, phenols, alcohols, carboxylic and sulfonic acids, and amphoteric compounds.

[hydr(o)- + ox(ygen) + -yl.]

hy′drox·yl′ic (hī′drŏk-sĭl′ĭk) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

hydroxyl

(haɪˈdrɒksɪl)

(Chemistry) (modifier) of, consisting of, or containing the monovalent group -OH or the ion OH^–: a hydroxyl group or radical.

ˌhydroxˈylic adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

hy•drox•yl

(haɪˈdrɒk səl)

n.

the univalent group OH, found in both organic compounds, as ethyl alcohol, C₂H₅OH, and inorganic compounds, as sodium hydroxide, NaOH.

[1865–70; hydr-² + ox(ygen) + -yl]

hy`drox•yl′ic (-ˈsɪl ɪk) adj.

hy·drox·yl

(hī-drŏk′sĭl)

The group OH. It has a valence of 1 and is present in bases, certain acids, hydroxides, and alcohols.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Noun

hydroxyl - the monovalent group -OH in such compounds as bases and some acids and alcohols

hydroxyl group, hydroxyl radical

chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

References in periodicals archive ?

All found evidence of water or its components (hydrogen or hydroxyl).

Ingredients for Water Could Be Made on Surface of Moon, A Chemical Factory

Initial data obtained by the spacecraft reveal the presence of molecules that contain oxygen and hydrogen atoms bonded together, known as 'hydroxyls'.

NASA finds WATER on nearby asteroid - and it could explain origin of life on Earth; NASA sent a spacecraft on a 1.4 million mile mission to the asteroid, dubbed Bennu, where it arrived last week

Especially, hydroxyl radical (OH*) plays important role in the decolorization of synthetic dye because it quickly cleavage double bond (-N=N-) of chromophoric group [17].

Decolorization of Reactive Azo Dye Remazol Black B by Using Advanced Oxidation Processes (AOPs)

'Researchers will drill ice cores to depths of 250 meters to measure pre-industrial atmospheric levels of hydroxyl, which has never been done before,' a spokesperson said.

WATCH: Antarctic teams to drill ice to find 'detergent' against greenhouse gases

In the literature, there are very few researches about QSAR of the hydroxyl benzoic esters.

A QSAR Study Based on SVM for the Compound of Hydroxyl Benzoic Esters

"Oxidation of volatile organic compounds initiated by the hydroxyl radical, then catalyzed by nitrogen oxide--that's what makes ozone," says Jennifer Murphy, a chemistry professor at the University of Toronto.

Smog tucks in for the night in the darnedest place

The resin is both epoxy and hydroxyl functional and can be cured using either functionality.

DIC offers two new aqueous dispersions

Meanwhile, hydroxyl bonds enhance the chemical activity of epoxy resins and improve their bonding capacity.

A renewable agricultural waste material for the synthesis of the novel thermal stability epoxy resins

The AOPs such as photooxidative [H.sub.2][O.sub.2] (UV/[H.sub.2][O.sub.2]) is caused by the production of hydroxyl radicals and expected to enhance the discoloration rate [5,6].

Effect of ph and [H.sub.2][O.sub.2] dosage on the photooxidative degradation of Reactive Red 120 (RR120) by UV-[H.sub.2][O.sub.2]

Specially, highly reactive (strong oxidants) hydroxyl radicals are the topic of the current interest for the destruction of organic pollutants in surface, ground- and wastewaters as well as sludge cleaning [12-16].

Application of HPLC to study the reaction of free radicals with antioxidants and/or toxins

Hydroxyls are molecules consisting of an oxygen atom connected to a hydrogen atom.