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Relating to or being a hydrocarbon unit, C4H9, that can occur as a substituent in an organic compound or as an ion or radical.
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.


(ˈbjuːˌtaɪl; -tɪl)
(Elements & Compounds) (modifier) of, consisting of, or containing any of four isomeric forms of the group C4H9–: butyl rubber.
[C19: from but(yric acid) + -yl]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈbyu tɪl, ˈbyut l)

any of four univalent isomeric groups with the formula C4H9.
[1865–70; but (yric) + -yl]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.butyl - a hydrocarbon radical (C4H9)
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
isobutylene - used also in making gasoline components
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
China has imposed anti-dumping tariffs on chemical companies in Taiwan, the United States and Malaysia, effective from Saturday, after vendors from those countries were found to have sold butyl alcohol at unfairly low prices in China.
A research report by Persistence Market Research shows the global butyl rubber market reaching a market valuation of over $4.2 billion by the end of 2025, growing at a compound annual growth rate (CAGR) of 4.7% during the period.
Sadara's butyl glycol ether (BGE) plant is one of the largest of its kind in the world.
18 -- Reliance Industries Limited (RIL) and Russian petrochemical giant SIBUR signed an MoU at the recently-concluded Vibrant Gujarat Summit at Gandhinagar to set up South Asia's first butyl rubber halogenation unit at RIL's integrated petrochemical site in Jamnagar, Gujarat.
Valley Cottage, NY, July 01, 2016 --(PR.com)-- Butyl elastomer, commonly known as butyl rubber, is basically a synthetic rubber produced by co-polymerization of isobutylene with isoprene.
The SFW of R biotype (Kedah-SB8) was significantly (Pless than 0.001) reduced (90%) by the combined effect of recommended field use rates propanil + quinclorac and quinclorac + cyhalofop- butyl. Recommended rates of propanil combined with cyhalofop-butyl also showed great potential to reduce SFW in the R biotype (Table 6).
Hyoscine butyl bromide is a quaternary ammonium compound that is a competitive agonist at the muscarinic receptor.
[sup.13]C-NMR: 59.5 ([C.sub.3]) (CH, Aliphatic), 73.7 ([C.sub.2]) (CH, Aliphatic), 34.4 (C[H.sub.2], Butyl), 27.3 (C[H.sub.2], Butyl), 23.0 (C[H.sub.2], Butyl), 14.1 (C[H.sub.3], Butyl), 199.3 ([C.sub.1], Methanone), 156.6 ([C.sub.4], Phenolic -OH), 143.9 (C-N[O.sub.2]), 125.0 (C-N=N), 147.6 (N=N-C), C-Ph.
A debottlenecking project to increase its capacity of butyl glycol ethers has been announced by Dow Oxygenated Solvents.
25 -- Reliance Industries (RIL) and Sibur, Russia and Eastern Europe's petrochemical company, have entered into a joint venture, Reliance Sibur Elastomers, to produce 100,000 tons of butyl rubber per year in Jamnagar, India.
LANXESS AG is a major producer of butyl rubber, a chemical found in such commodities as car tires and chewing gum.
International Resource News-October 22, 2010--Japan Butyl Co Ltd increases butyl rubber production capacity at Kawasaki plant(C)1994-2010 ENPublishing - http://www.enpublishing.co.uk